ANSYS, Inc. Release Notesstorage.ansys.com/doc_assets/release_notes/Release_Notes_171.pdf · ANSYS,...

Release Notes

Release 17.1ANSYS, Inc.April 2016Southpointe

2600 ANSYS Drive ANSYS, Inc. iscertified to ISO9001:2008.

Canonsburg, PA [email protected]://www.ansys.com(T) 724-746-3304(F) 724-514-9494

Copyright and Trademark Information

© 2016 SAS IP, Inc. All rights reserved. Unauthorized use, distribution or duplication is prohibited.

ANSYS, ANSYS Workbench, Ansoft, AUTODYN, EKM, Engineering Knowledge Manager, CFX, FLUENT, HFSS, AIMand any and all ANSYS, Inc. brand, product, service and feature names, logos and slogans are registered trademarksor trademarks of ANSYS, Inc. or its subsidiaries in the United States or other countries. ICEM CFD is a trademarkused by ANSYS, Inc. under license. CFX is a trademark of Sony Corporation in Japan. All other brand, product,service and feature names or trademarks are the property of their respective owners.

Disclaimer Notice

THIS ANSYS SOFTWARE PRODUCT AND PROGRAM DOCUMENTATION INCLUDE TRADE SECRETS AND ARE CONFID-ENTIAL AND PROPRIETARY PRODUCTS OF ANSYS, INC., ITS SUBSIDIARIES, OR LICENSORS. The software productsand documentation are furnished by ANSYS, Inc., its subsidiaries, or affiliates under a software license agreementthat contains provisions concerning non-disclosure, copying, length and nature of use, compliance with exportinglaws, warranties, disclaimers, limitations of liability, and remedies, and other provisions. The software productsand documentation may be used, disclosed, transferred, or copied only in accordance with the terms and conditionsof that software license agreement.

ANSYS, Inc. is certified to ISO 9001:2008.

U.S. Government Rights

For U.S. Government users, except as specifically granted by the ANSYS, Inc. software license agreement, the use,duplication, or disclosure by the United States Government is subject to restrictions stated in the ANSYS, Inc.software license agreement and FAR 12.212 (for non-DOD licenses).

Third-Party Software

See the legal information in the product help files for the complete Legal Notice for ANSYS proprietary softwareand third-party software. If you are unable to access the Legal Notice, Contact ANSYS, Inc.

Published in the U.S.A.

Table of Contents

Global ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii1. Advisories .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii2. Installation .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii3. Licensing .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii4. Documentation .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii5. Online Video Access .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii6. ANSYS Customer Portal ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix7. ANSYS Elastic Licensing .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix8. Platform Support ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

8.1. Screen Resolution Recommendations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x9. New Product Levels ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

I. ANSYS Structural Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11. Mechanical Application Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1. Incompatibilities and Changes in Product Behavior from Previous Releases .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2. General Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3. Performance Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.4. Graphics Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.5. Geometry Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.6. Model Assembly and External Model Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.7. Contact and Connection Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.8. Mesh Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.9. Fracture Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.10. Composites Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.11. Analysis Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.12. Linear Dynamics Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.13. Loads/Supports/Conditions Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.14. Mapping Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.15. Solution Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.16. Rigid Body Solver Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.17. Explicit Dynamics Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.18. Results Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2. Mechanical APDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.1. Solvers ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2. Materials ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.1. User-Defined Thermal Strain .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.3. Elements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.1. New Elements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73. Autodyn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94. Aqwa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1. Aqwa Solver Modules .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.1.1. User-Defined Analysis Units ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5. ANSYS Composite PrepPost (ACP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1. New Features in ANSYS Composite PrepPost (ACP) 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.1. Performance Improvements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1.2. Variable Offset Selection Rule .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1.3. Enhancements to Python User Interface .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1.4. CAD Geometry Handling .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1.5. Unified Mechanical Postprocessing Engine .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145.1.6. Text Labels for User-Defined Plots ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

iiiRelease 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information

of ANSYS, Inc. and its subsidiaries and affiliates.

5.2. Supported Platforms for ANSYS Composite PrepPost (ACP) 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145.3. Known Incompatibilities ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

II. ANSYS Fluids Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151. Fluent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1.1. New Features in ANSYS Fluent 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.2. Supported Platforms for ANSYS Fluent 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.3. New Limitations in ANSYS Fluent 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.4. Resolved Issues and Limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181.5. Updates Affecting Code Behavior ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. CFX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.1. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.2. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.3. Resolved Issues and Limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.4. Updates Affecting Code Behavior ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3. TurboGrid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.1. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.2. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4. BladeModeler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.1. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.2. BladeGen .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.2.1. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.3. BladeEditor ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.3.1. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255. CFD-Post . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.2. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.3. Resolved Issues and Limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.4. Updates Affecting Code Behavior ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6. Polyflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296.1. New Features .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296.2. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296.3. New Limitations in ANSYS Polyflow 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296.4. Past Versions of ANSYS Polyflow Release Notes .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7. Forte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317.1. New Capabilities and Enhancements in ANSYS Forte 17.1 vs. Forte 17.0 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317.2. Resolved Issues Since Forte 17.0 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327.3. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8. Chemkin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338.1. New Capabilities and Enhancements Added Since 17.0 (15151) ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338.2. ANSYS Energico Add-On to Chemkin-Pro 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338.3. ANSYS Reaction Workbench Add-On to Chemkin-Pro 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

III. ANSYS Electronics Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351. Icepak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

1.1. Introduction .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371.2. New and Modified Features in ANSYS Icepak 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371.3. Resolved Issues and Limitations in ANSYS Icepak 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

IV. ANSYS Geometry & Mesh Prep Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411. DesignModeler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432. SpaceClaim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453. CAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474. Meshing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.1. Inflation Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Release 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.iv

Release Notes

4.2. Performance and Quality Improvements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495. IC Engine Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 516. ICEM CFD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.1. Highlights of ANSYS ICEM CFD 17.1 .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536.1.1. Blocking visualization .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536.1.2. Editing blocks .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536.1.3. Replay Control editor ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546.1.4. Miscellaneous .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.2. Documentation .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546.2.1. Tutorials ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7. Fluent Meshing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557.1. Changes in Product Behavior from Previous Releases .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557.2. New Features .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

V. ANSYS Simulation Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571. Workbench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

1.1. ANSYS Workbench .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591.1.1. ANSYS Workbench-EKM Portal Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

1.2. External Connection .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591.3. Engineering Data Workspace .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591.4. External Data .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591.5. External Model ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591.6. Enhancement to Mechanical Model Cells ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 601.7. FE Modeler ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 601.8. System Coupling .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 601.9.TurboSystem Release Notes .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

1.9.1. Supported Platforms .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 611.9.2. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

1.10. CFD-Post in Workbench .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 612. ANSYS ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 633. Remote Solve Manager (RSM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

3.1. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 653.2. Resolved Issues and Limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

4. EKM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 674.1. New Features and Enhancements .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 674.2. Issues Resolved in this Release .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 684.3. Issues and Limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

5. DesignXplorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71VI. ANSYS AIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

1. Advisories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 752. Enhancements in AIM 17.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773. Enhancements in AIM 17.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

vRelease 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information


Release Notes

Global Release NotesThe release notes are specific to ANSYS, Inc. Release 17.1 and arranged by application/product, withthe exception of:

• Advisories (p. viii)

• Installation (p. viii)

• Licensing (p. viii)

• Online Video Access (p. viii)

• ANSYS Customer Portal (p. ix)

• Platform Support (p. ix)

Note that installation- and licensing-specific information is detailed in some application and productsections.

Release notes are available in printable format (PDF) via the product media, and accessible in the ANSYSHelp Viewer or online via the ANSYS Customer Portal (p. ix) for the following:

• ANSYS 17.0

• ANSYS 16.2

• ANSYS 16.1

• ANSYS 16.0

See ANSYS Customer Portal> Downloads> Previous Releases> ANSYS Documentation and Input Filesto download zip files containing the Product and Release Documentation.

The Release Documentation files include the following:

• ANSYS Platform Support Strategy & Plans

• ANSYS, Inc. Installation and Licensing Tutorials

• ANSYS, Inc. Known Issues and Limitations

• ANSYS, Inc. Licensing Guide

• ANSYS, Inc. Quick Start Installation Guide

• ANSYS, Inc. Quick Start Licensing Guide

• ANSYS, Inc. Release Notes

• Linux Installation Guide

• SpaceClaim Release Notes (as applicable)

• Windows Installation Guide

viiRelease 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information


https://support.ansys.com/portal/site/AnsysCustomerPortal/template.fss?file=%2Fprod_docu%2F17.0%2FANSYS%2C+Inc.+Release+Notes.pdf




http://support.ansys.com

1. Advisories

In addition to the incompatibilities noted within the release notes, known non-operational behavior,errors and/or limitations at the time of release are documented in the Known Issues and Limitationsdocument, although not accessible via the ANSYS Help Viewer. See the ANSYS Customer Portal (p. ix)for information about the ANSYS service packs and any additional items not included in the KnownIssues and Limitations document. First-time users of the customer portal must register to create apassword.

2. Installation

The following features are new or changed at Release 17.1. Review these items carefully.

• ANSYS Reaction Design Products (Chemkin) are now included in the product installation and can be selectedon the product selection menu for installation. Release notes specific to Chemkin are included in the ANSYSFluids Products section of this document.

• The ANSYS SpaceClaim Direct Modeler product is now available as a stand-alone package. This product isa 3D direct modeling application that allows users to create, edit, and prepare geometry for engineeringsimulation. For detailed information specific to SpaceClaim 2016, see the most-recent release notes on theANSYS Customer Portal (support.ansys.com) at Knowledge Resources> Online Documentation> Geometry.

• As of this release, the Fatjack and Beamcheck and the Legacy ACIS Reader for ICEM CFD add-on packageswill no longer be available.

3. Licensing

The following enhancements have been made to ANSYS, Inc. Licensing for Release 17.1:

• The ANSYS License Manager Installation automatically updates your modified product order file to includeany product changes that have occurred in the most recently installed release.

• You may safely continue using the 17.0 License Manager; it is not necessary to upgrade to the 17.1 LicenseManager, unless you need to take advantage of any new features.

• ANSYS will soon begin issuing CVD licenses to Electronics customers. To ensure that this license is fullysupported, we recommend that Electronics customers upgrade to the 17.1 LM now.

4. Documentation

Documentation is now installed per-product; only the documentation associated with the products youinstall will be included by default. You can choose to install all documentation by running a document-ation-only install from the installation launcher.

Updated Product Documentation

Visit the ANSYS Customer Portal Online Documentation page to view or search the latest updates tothe Release 17.1 documentation.

5. Online Video Access

To review an extensive library of How-To Videos that demonstrate how to use ANSYS product features,go to the ANSYS How-To Videos YouTube page on YouTube.

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http://support.ansys.com/documentation

https://www.youtube.com/user/ANSYSHowToVideos

6. ANSYS Customer Portal

If you have a password to the ANSYS Customer Portal, you can view additional documentation inform-ation and late changes. The portal is also your source for ANSYS, Inc. software downloads, service packs,product information (including example applications, current and archived documentation, undocumentedcommands, input files, and product previews), and online support.

All the product documentation is available in printable format (PDF). Note that the content of the filescan be copied into word processing programs.

Customer Portal access points:

• Tutorials and input files To access tutorials and their input files on the ANSYS Customer Portal, goto http://support.ansys.com/training.

• Documentation To access documentation files on the ANSYS Customer Portal, go to http://support.an-sys.com/documentation.

• General information For further information about tutorials and documentation on the ANSYSCustomer Portal, go to http://support.ansys.com/docinfo.

7. ANSYS Elastic Licensing

Beginning with ANSYS 17.1, pay-per-use licensing is offered in conjunction with traditional lease andpaid-up licensing. ANSYS Elastic Licensing provides hourly-based access to all ANSYS products (with theexception of the Semiconductor applications and SCADE applications) through a single license calledANSYS Elastic Units.

Available in three phases, the infrastructure was launched with five Cloud Hosting Partners in March2016. In conjunction with ANSYS 17.1, the offering is available on the ANSYS Enterprise Cloud runningAWS. ANSYS Elastic Licensing is targeted for on-premise deployment in the fourth quarter of 2016.

More information and announcements about ANSYS Elastic Licensing and the ANSYS Enterprise Cloudare available at ansys.com.

8. Platform Support

Information about past, present and future platform support is viewable via the ANSYS, Inc. website(Solutions> Solutions by Role> IT Professionalst> Platform Support).

Included on the web page is:

• ANSYS Platform Support – Summary of Strategy and Plans

• Browser Support

• CAD Support

• Graphics Cards Tested

• Remote Display Support

• Interconnects Support

ixRelease 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information


Platform Support


http://support.ansys.com/training



http://support.ansys.com/docinfo

http://www.ansys.com/Solutions/Solutions-by-Role/IT-Professionals/Platform-Support

• Platform Support by Application

8.1. Screen Resolution Recommendations

Minimum supported screen resolution (except handheld mobile)

• 1024 x 768 (4:3 aspect ratio)

• 1366 x 768 (16:9 aspect ratio)

• 1280 x 800 (16:10 aspect ratio)

Recommended resolution

• 1920x1080 (16:9)

• 1920x1200 (16:10) or higher

9. New Product Levels

The product level consolidation and upgrades introduced at Release 17.0 remain unchanged for Release17.1. The result is that more capabilities per product are included except for the LS-DYNA Export cap-ability that has been removed from the Explicit STR implementation in Mechanical Enterprise. Otherwise,no features have been removed from the individual products or applications such as ANSYS MechanicalAPDL or ANSYS Workbench Mechanical. Your current license will continue to function as usual untilyou upgrade to the new release.

The following table outlines the capabilities of the product levels introduced at Release 17.0:

CapabilitiesProduct Name

Same as previous DesignSpace productDesignSpace

New product at Release 17.0 featuring:ANSYS Mechanical Pro

• Static Stress Analysis

• Steady-State and Transient Thermal Analysis

• Modal Analysis

• Eigenvalue Buckling Analysis

• Fatigue Analysis (ANSYS Fatigue Module)

New product at Release 17.0, featuring everythingin ANSYS Mechanical Pro and:

ANSYS Mechanical Premium

• Static Stress Analysis with Nonlinear Materials

• Harmonic Analysis

• Linear Transient Stress Analysis

• Spectrum Analysis

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• Random Vibration Analysis

• Rotordynamics Analysis

• Rigid Body Dynamics (ANSYS Rigid BodyDynamics)

ANSYS Mechanical renamed as ANSYS MechanicalEnterprise. Nothing removed from previous ANSYS

ANSYS Mechanical Enterprise

Mechanical product, featuring everything fromANSYS Mechanical Premium and:

• Advanced Nonlinear Materials

• Nonlinear Transient Stress Analysis

• Fracture Analysis

• Acoustics

• Electric and Electrostatic Analysis

• Coupled-Field Analysis

• Substructuring

• Shell and Solid Composites Pre- andPostprocessing (ANSYS Composite PrepPost)

• Hydrodynamics (ANSYS Aqwa Suite with CoupledCable Dynamics)

• Explict Dynamics (ANSYS Explicit STR except forthe LS-DYNA Export capability)

• Advanced Geometry Creation and Manipulation(ANSYS SpaceClaim Direct Modeler)

• Design Optimization and Probabilistic Design(ANSYS DesignXplorer)

• Workflow Automation (ANSYS CustomizationSuite)

ANSYS Mechanical PrepPost renamed as ANSYSMechanical Enterprise PrepPost. Nothing removed

ANSYS Mechanical Enterprise PrepPost

from previous ANSYS Mechanical PrepPost product,and includes all PrepPost features of ANSYSMechanical Enterprise including:

• Fatigue Analysis (ANSYS Fatigue Module)

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New Product Levels



• Explicit Dynamics (ANSYS Explicit STR except forthe LS-DYNA Export capability)

• Shell and Solid Composites Pre- andPostprocessing (ANSYS Composite PrepPost)


• Advanced Geometry Creation and Manipulation(ANSYS SpaceClaim Direct Modeler)

• Design Optimization and Probabilistic Design(ANSYS DesignXplorer)

• Workflow Automation (ANSYS CustomizationSuite)

ANSYS Mechanical Solver renamed as ANSYSMechanical Enterprise Solver. Nothing removed

ANSYS Mechanical Enterprise Solver

from previous ANSYS Mechanical Solver product,and includes all Solver features of ANSYS MechanicalEnterprise including:


• Explicit Dynamics (ANSYS Explicit STR except forthe LS-DYNA Export capability)


Same as previous ANSYS Autodyn productANSYS Autodyn

Same as previous ANSYS LS-DYNA productANSYS LS-DYNA

New products enable all functionalities and multiple applications. However, they are still a single productor a single task, and therefore only allow access to each application sequentially, but not simultaneously.For example, if you have a single ANSYS Mechanical Enterprise license available, you can perform aMechanical APDL solution, but you would not be able to use SpaceClaim Direct Modeler until thesolution is complete.

The HPC capabilities for each of the solvers remain as they were in previous releases. The number ofcores allowed to be used by the solver without any HPC licenses is 2 (DMP or SMP) for the MechanicalAPDL solver, 1 for the Rigid Body Dynamics solver, 1 for the Explicit solver, and 1 for the Aqwa solver.

If you are running a previous release of ANSYS products with the Release 17.1 licensing manager, youwill notice that some additional features have been made available to your earlier product. Although

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these new features are available and can be used, the previous releases will not contain the full set offeatures of the new product levels.

xiiiRelease 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information


New Product Levels

Part I: ANSYS Structural Products

Release notes are available for the following ANSYS Structural products:

Mechanical Application (p. 3)Mechanical APDL (p. 7)Autodyn (p. 9)Aqwa (p. 11)ACP (p. 13)

Chapter 1: Mechanical Application Release Notes

This release of the Mechanical application contains all of the capabilities from previous releases plusmany new features and enhancements. Areas where you will find changes and new capabilities includethe following:

1.1. Incompatibilities and Changes in Product Behavior from Previous Releases1.2. General Enhancements1.3. Performance Enhancements1.4. Graphics Enhancements1.5. Geometry Enhancements1.6. Model Assembly and External Model Enhancements1.7. Contact and Connection Enhancements1.8. Mesh Enhancements1.9. Fracture Enhancements1.10. Composites Enhancements1.11. Analysis Enhancements1.12. Linear Dynamics Enhancements1.13. Loads/Supports/Conditions Enhancements1.14. Mapping Enhancements1.15. Solution Enhancements1.16. Rigid Body Solver Enhancements1.17. Explicit Dynamics Enhancements1.18. Results Enhancements

1.1. Incompatibilities and Changes in Product Behavior from PreviousReleases

Release 17.1 includes several new features and enhancements that result in product behaviors thatdiffer from previous releases. These behavior changes are presented below.

• Auto Suppression of Coordinate Systems. In line with the behaviors of objects such as contact regions,joints, or springs, Mechanical now automatically suppresses a user-defined coordinate system when thegeometry that the coordinate system is scoped to becomes suppressed. In previous releases, the coordinatesystem would be marked as underdefined (with a "?").

1.2. General Enhancements

The following general enhancements have been made at Release 17.1:

• Import and Export Named Selections. Mechanical now enables you to import and/or export element- andnode-based Named Selections in Mechanical APDL common database (.cdb) file format.

• Filtering the Tree Outline. The option Environment has been added to the tree filtering feature. For ananalysis with multiple environments, you can filter the tree for a specific environment. Once selected, allobjects specific to the environment, are displayed in the tree.

3Release 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information


• Delete Imported Group Objects. Mechanical now enables you to delete Imported Load/Thickness/Trace(Group) objects from the Mechanical tree.

1.3. Performance Enhancements

The following performance enhancements have been made at Release 17.1:

• Tree Navigation on Linux. On the Linux platform in previous releases, you may have experienced a lagbetween the time you selected a tree object and when you were able to take another action. This conditionno longer exists.

1.4. Graphics Enhancements

Release 17.1 has no new graphical enhancements.

1.5. Geometry Enhancements

The following geometry enhancements have been made at Release 17.1:

• ACIS Units. Mechanical now enables the use of ACIS length units if they are available during the importprocess. Length units are read-only in Mechanical, unless the ACIS geometry does not provide them uponattach/update.

1.6. Model Assembly and External Model Enhancements

Release 17.1 has no new Model Assembly and/or External Model enhancements.

1.7. Contact and Connection Enhancements

Release 17.1 has no new connection enhancements.

1.8. Mesh Enhancements

Refer to the 17.1 Release Notes of the Meshing application for the new features and enhancementsassociated with Meshing in the Mechanical application.

1.9. Fracture Enhancements

The following fracture enhancements have been made at Release 17.1:

• Pre-Meshed Crack. You can now specify crack symmetry for pre-meshed cracks in 2D and 3D analyses.

• Fracture Controls. You can exclude the computation of default computed fracture parameters (SIFS, J-in-tegral, and C*-Integral) using the respective Fracture Controls (Analysis Settings).

1.10. Composites Enhancements

The following composite enhancements have been made at Release 17.1:

• Composite Failure Tool. The Composite Failure Tool is a new post-processing option that enables you todefine and analyze failure criteria for composite ply structures modeled using ANSYS Composite PrepPost(ACP). This feature is not currently supported on the Linux platform.

Release 17.1 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.4

Mechanical Application Release Notes

1.11. Analysis Enhancements

The following analysis enhancements have been made at Release 17.1:

• Beam Submodeling. The Submodeling feature now enables you to import forces and moments as well asdisplacements and rotations from beam-based geometries from a source analysis to shell- or solid-basedsubmodel geometries in a target analysis.

1.12. Linear Dynamics Enhancements

The following enhancements have been made at Release 17.1 for Linear Dynamic features and analyses:

• Options for Analyses: Spin Softening. You can now specify whether to include or exclude the SpinSoftening effect when solving Pre-Stressed Modal and Pre-Stressed Harmonic Response analyses.

• Campbell Diagram Chart Results. A new Campbell Diagram Chart property, Stable Motion Sign, is nowavailable. This property controls the sign (positive or negative) of Logarithmic Decrement Value for a stablemotion.

1.13. Loads/Supports/Conditions Enhancements

The following loads/supports/conditions enhancements have been made at Release 17.1:

• Shared Topology on Remote Boundary Conditions. You can now scope remote boundary conditions onthe shared topology of edges, faces, and vertices.

• Line Pressure. You can now scope a vector- and component-based Line Pressure load to multiple edges.

1.14. Mapping Enhancements

Release 17.1 has no new mapping enhancements.

1.15. Solution Enhancements

Release 17.1 has no new solution enhancements.

1.16. Rigid Body Solver Enhancements

Release 17.1 has the following new features and enhancements for the Rigid Body Solver.

• Mesh-Based Contact Detection Method. A new method of contact detection has been introduced whichdetermines contact based on the mesh.

• Moreau-Jean Time Stepping. The Moreau-Jean Time Stepping method of time integration is now availablefor Rigid Dynamics analysis. The following limitations apply to this new feature at Release 17.1:

– No separation and rough contact types are not supported with Moreau-Jean Time Stepping.

– The Joint acceleration and joint angular acceleration conditions are not supported with Moreau-JeanTime Stepping. System global acceleration is supported.



Rigid Body Solver Enhancements

1.17. Explicit Dynamics Enhancements

Release 17.1 has no new features or enhancements for the Explicit Dynamics Solver.

1.18. Results Enhancements

The following results enhancements have been made at Release 17.1:

• Composite Failure Tool. The Composite Failure Tool is a new post-processing option that enables you todefine and analyze failure criteria for composite ply structures modeled using ANSYS Composite PrepPost(ACP). This feature is not currently supported on the Linux platform.


Mechanical Application Release Notes

Chapter 2: Mechanical APDL Release Notes

Release 17.1 of the Mechanical APDL application offers most of the capabilities from prior releases plusmany new features and enhancements. Areas where you will find changes and new capabilities includethe following:

• Solvers (p. 7)

• Materials (p. 7)

• Elements (p. 7)

2.1. Solvers

Release 17.1 includes the following solver performance improvement:

• The parallel performance for the QRDAMP eigensolver is significantly improved, particularly whenhundreds of modes are computed.

2.2. Materials

Release 17.1 includes the following new materials capability:

2.2.1. User-Defined Thermal Strain

You can now define a custom thermal strain via the TB,CTE,,,,USER command and the new UserTh-Strain subroutine. For more information, see Subroutine UserThStrain (Defining Your Own ThermalStrain) in the Mechanical APDL Programmer's Reference.

2.3. Elements

This section describes changes to elements at Release 17.1.

Some elements are not available from within the GUI. For a list of those elements, see GUI-InaccessibleElements.

2.3.1. New Elements

2.3.1. New Elements

The following new element has been added:

• FLUID218 -- A 3-D element for modeling viscous fluid flow located between a cylindrical rotating part (theshaft or bearing journal) and a larger cylindrical stationary part (bearing sleeve). This element may be usedto determine the pressure distribution in a cylindrical journal hydrodynamic bearing or squeeze film damperor perform a transient simulation of a rotor-bearing model.



Chapter 3: Autodyn Release Notes

The ANSYS Autodyn product comprises all of the following explicit solvers: FE (Lagrange), Euler, FCT,ALE, and SPH, and various means to couple them together. All are integrated into the Autodyn Com-ponent system, while the FE (Lagrange) and Euler—including Euler-Lagrange coupling—are also integ-rated into the Explicit Dynamics Analysis system (see Explicit Dynamics Enhancements (p. 6)). Bothsystems are part of the Autodyn product.

3.1. New Features and Enhancements


The following new features and enhancements are available in release 17.1. Refer to the product specificdocumentation for full details.

• There are no new features or enhancements in ANSYS Autodyn in Release 17.1.



Chapter 4: Aqwa Release Notes

This release of the Aqwa related products contains all capabilities from previous releases plus manynew features and enhancements. The following enhancements are available in release 17.1. Refer tothe product specific documentation for full details of the new features.

4.1. Aqwa Solver Modules

4.1. Aqwa Solver Modules

The following new features provide extended capabilities in the Aqwa solver modules:

4.1.1. User-Defined Analysis Units

In Aqwa Workbench, it is now possible to specify the units that will be used when the data is writtento the Aqwa .DAT file. A number of pre-defined sets of consistent units are available.



Chapter 5: ANSYS Composite PrepPost (ACP)

The following enhancements are available in release 17.1. Refer to the product specific documentationfor full details of the new features. Notes on features incorporated into the 16.1 and 16.2 releases arealso included here for users upgrading between major releases.

5.1. New Features in ANSYS Composite PrepPost (ACP) 17.15.2. Supported Platforms for ANSYS Composite PrepPost (ACP) 17.15.3. Known Incompatibilities

5.1. New Features in ANSYS Composite PrepPost (ACP) 17.1

The following features were added to ANSYS Composite PrepPost (ACP) for the 17.1 release:5.1.1. Performance Improvements5.1.2.Variable Offset Selection Rule5.1.3. Enhancements to Python User Interface5.1.4. CAD Geometry Handling5.1.5. Unified Mechanical Postprocessing Engine5.1.6.Text Labels for User-Defined Plots

5.1.1. Performance Improvements

For Release 17.1, there has been an emphasis on improvements in performance. The modeling ply updatehas been reworked. The handling of the Fabric option Ignore for Postprocessing has been adaptedas well. Both changes yield significant reductions in update time for large models.

5.1.2. Variable Offset Selection Rule

The Variable Offset Selection Rule has been fully incorporated into ACP. Previously this selection rulewas available as an ACP add-on. This selection rule is an advance version of the Tube Selection Rule,combined with Ply Tapering. The Variable Offset Selection Rule allows you to select elements at varyingoffsets from an Edge Set. If the same selection rule is applied to multiple Modeling Plies, a tapering canalso be defined. The offsets are defined using Look-up Tables and can be measured directly or along acurvature.

5.1.3. Enhancements to Python User Interface

The access to model information through the Python user interface has been extended. The mesh_queryfunction now allows you to directly and quickly access model information such as elemental area,volume, or weight.

5.1.4. CAD Geometry Handling

CAD Geometries which are imported directly into ACP are transferred to the Workbench Project filestructure. This removes any absolute file paths and makes sharing of ACP projects more stable. Formore information, see CAD Geometries.



5.1.5. Unified Mechanical Postprocessing Engine

Composite failure postprocessing is now available in Mechanical as well as ACP-Post. For more inform-ation, see Composite Failure Tool.

5.1.6. Text Labels for User-Defined Plots

The functionality of the User-Defined Plots has been extended so that user-defined text labels can bepresented on each element. The feature behaves in the same way as text labels for failure plots.

5.2. Supported Platforms for ANSYS Composite PrepPost (ACP) 17.1

Platform/OS levels that are supported in the current release are posted on the ANSYS website.

5.3. Known Incompatibilities

There are no known incompatibilities with previous releases for Release 17.1.


ANSYS Composite PrepPost (ACP)

http://www.ansys.com/Support/Platform+Support

Part II: ANSYS Fluids Products

Release notes are available for the following ANSYS Fluids products:

Fluent (p. 17)CFX (p. 21)TurboGrid (p. 23)ANSYS BladeModeler (p. 25)CFD-Post (p. 27)Polyflow (p. 29)Forte (p. 31)ANSYS Chemkin (p. 33)

Chapter 1: Fluent Release Notes

The following sections contain release information for ANSYS Fluent 17.1.1.1. New Features in ANSYS Fluent 17.11.2. Supported Platforms for ANSYS Fluent 17.11.3. New Limitations in ANSYS Fluent 17.11.4. Resolved Issues and Limitations1.5. Updates Affecting Code Behavior

1.1. New Features in ANSYS Fluent 17.1

New features available in ANSYS Fluent 17.1 are listed below. Where appropriate, references to the rel-evant section in the User's Guide are provided.

Solver-Meshing

• For overset meshes, it is now possible to specify that the cell donor priority used in the overlapminimization of an overset interface is based on the distance to the nearest boundary, ratherthan the cell size. This option is useful when the overlapping meshes have a similar resolution.(Overlap Minimization)

• For overset meshes, a numerical treatment that will let the solver attempt to run with orphancells is now available (see Donor Search Fails Due to Orphan Cells for details).

Data Import and Export

• It is now possible to export structural and thermal load data on polyhedral zone surfaces to the NASTRANformat.

General

• Support for the Fluent License Manager has been extended to version 17.1, though it will not be sup-ported in version 18.0 and later releases. The purpose of this extension is to provide time for those stillusing it to migrate and upgrade to the ANSYS, Inc. License Manager.

1.2. Supported Platforms for ANSYS Fluent 17.1

Information about past, present, and future operating system and platform support is viewable via theANSYS website.

1.3. New Limitations in ANSYS Fluent 17.1

The following is a list of new or recently discovered limitations known to exist in ANSYS Fluent 17.1.Where possible, suggested workarounds are provided.

• Parallel Processing




– The Fluent process binding (affinity) setting is not supported for Windows machines with morethan 64 cores that are using the Platform MPI communication library, which may increase processingtime. As a workaround, you can use Intel MPI or disable hyper-threading (if the machine has Intelprocessors) to lower the core count to be equal to or below 64.

• For a complete list of known limitations, including those that exist from previous releases, refer to KnownLimitations in ANSYS Fluent 17.1 in the Fluent Getting Started Guide.

1.4. Resolved Issues and Limitations

Release 17.1 addresses many issues and limitations that have existed in previous releases of ANSYSFluent, including the following:

• Meshes

– The dynamic layering method can now be used to split or merge cells adjacent to moving facezones that are connected to coupled walls (that is, walls with a shadow face zone).

– A fix has been introduced to address compatibility issues between overset meshes and mesh inter-faces.

• Solver

– A fix has been introduced for transient cases that have a sliding interface and also use the node-based gradient method for spatial discretization. Such cases had been observed to have a memorymanagement issue in version 17.0, which could cause the Fluent session to use up all of the systemmemory and terminate if the number of time steps was sufficiently large.

• Graphics, Postprocessing, and Reporting

– Phase quantities and custom field functions on native polyhedra meshes (as opposed to convertedpolyhedra) are now properly interpolated with node-weight based interpolation.

– The net results of flux report definitions are now correct for all types of boundary conditions, includingporous jump, radiator, and fans.

– Overset mesh now displays correct node values at overset boundaries with contour plots.

– A fix has been introduced to ensure that moment report definitions produce correct results for 2Dcases.

– For cases in which you have changed the temperature unit from Kelvin to Celsius or Fahrenheit,the plots of report definitions have been corrected so that the y-axis label lists the unit as K, whichcorresponds to the displayed data (which is in Kelvin).

• Workbench

– A fix has been introduced for cases in which Fluent in Workbench is run on Linux, to ensure thatthe Solution tab (opened using the Show Solution Monitoring option in the Solution cell contextmenu) properly displays the Fluent Solution Images (enabled in the View menu).

– You can now initialize a downstream Fluent simulation on a modified mesh, using a data interpolationfile (*.ip) created from an upstream, connected Fluent system of the same geometry.


Fluent

1.5. Updates Affecting Code Behavior

This section contains a comprehensive list of the code changes implemented in ANSYS Fluent 17.1 thatmay affect the output generated by the previous release.

Note

Text that is in bold font represents key words that may facilitate your search for thechanges in code behavior.

Boundary Conditions

• A fix has been introduced for cases with mass-flow inlets defined with a cylindrical or local cylindricalcoordinate system, to ensure that the results at such inlets match those obtained by Fluent in versionsprior to 17.0.

Discrete Phase Model

• The Lagrangian wall-film model has been revised to correct a problem that may arise in cases involvingwall-film separation of wet combusting particles. Such cases are common in SCR applications (selectivecatalytic reduction, that is, urea injection for exhaust gas after treatment).

• A new warning has been added for simulations with unsteady DPM particle tracking, which reports ifany fraction of the discrete phase mass is "behind in time". This indicates that the maximum numberof particle integration steps was not always sufficient to allow the particles to move for the entirety ofthe fluid time. If you receive this warning during a calculation or when opening a previous simulation,you can use the reported percentage values to determine if it is a significant enough discrepancy towarrant revising the simulation to have a higher value for Max. Number of Steps in the Tracking tabof the Discrete Phase Model dialog box. Note that while the higher value will allow more particles tobe tracked for the entire time step, it may increase the processing time; depending on the case, it maybe that only a few particles require much more time than the others, and can be allowed to remain"incomplete".

Eulerian Multiphase Models

• In multiphase porous media (VOF, Mixture, and Eulerian multiphase models), the 17.0 solver returneddifferent values of pressure drop for inertial resistances and the power law than the 15.0 solver. A fixhas been introduced in order to match the solution results of release 15.0.

User-Defined Scalars

• A problem related to the calculation of user-defined scalar (UDS) diffusivity has been corrected. Thismay affect UDS results in multiphase mixtures, as well as in add-on modules making use of UDS diffus-ivity.

Parallel Processing

• When using the Intel MPI communication library on Windows, the default process binding (affinity)setting has been changed from that of Fluent to that of Intel MPI, and the message stating thatthe affinity has been set will no longer be displayed at startup when a case is read. The settingchange makes it possible to enable process binding for more than 64 cores, but otherwise it willnot affect results and should not affect processing time. To revert to the previous behavior, use



Updates Affecting Code Behavior

the –affinity=1 command line option or enter FLUENT_AFFINITY=1 in the Other Envir-onment Variables field in the Environment tab of Fluent Launcher.


Fluent

Chapter 2: CFX Release Notes

The following sections contain release information for Release 17.1 of ANSYS CFX.2.1. Supported Platforms2.2. New Features and Enhancements2.3. Resolved Issues and Limitations2.4. Updates Affecting Code Behavior

2.1. Supported Platforms



This section lists features and enhancements that are new in Release 17.1 of ANSYS CFX. Topics include:

High Performance Computing

• The default MPI method has been changed to Intel MPI. For details, see Using Intel MPI (Message PassingInterface Library) in the Configuring High Performance Computing Guide.

• A variety of improvements have been made to file I/O performance, in particular for cases with 64 ormore partitions.

System CouplingCFX supports two-way thermal data transfer with System Coupling. For details, see Coupling CFX to anExternal Solver: System Coupling Simulations in the CFX-Solver Modeling Guide.

Solution Monitoring

• Cyclic and Polar plots are available for monitoring transient periodic flows. For details, see Chart TypeSettings Tab in the CFX-Solver Manager User's Guide.

• Monitor Surfaces are now available for steady state runs (and remain available for transient runs). Fordetails, see Monitor Surfaces: Frame Overview in the CFX-Pre User's Guide.

• When creating backups with a specified output frequency, you can now choose to retain previousbackups (by default these backups are removed). For details, see Backup Data Retention in the CFX-PreUser's Guide.


This section lists issues and limitations that have existed in previous releases, but that have been resolvedand removed in Release 17.1 of ANSYS CFX.



http://www.ansys.com/ Support/Platform+Support


This section contains a list of changes that may cause the solution results from ANSYS CFX to differbetween Release 17.1 and Release 17.0.


CFX

Chapter 3: TurboGrid Release Notes

The following sections contain release information for Release 17.1 of ANSYS TurboGrid.3.1. Supported Platforms3.2. New Features and Enhancements




This section lists features and enhancements that are new in Release 17.1 of ANSYS TurboGrid.

• You can trim the hub and shroud curves. For details, see Trim Inlet Tab or Trim Outlet Tab - Changing theInlet or Outlet Boundary in the TurboGrid User's Guide.

• You can define hub and/or shroud regions within the inlet block and/or outlet block. For details, see HubRegions and Shroud Regions Tab in the TurboGrid User's Guide.




Chapter 4: ANSYS BladeModeler Release Notes

The following sections contain release information for Release 17.1 of BladeGen and BladeEditor.4.1. Supported Platforms4.2. BladeGen4.3. BladeEditor



4.2. BladeGen

4.2.1. New Features and Enhancements

This section lists features and enhancements that are new in Release 17.1 of ANSYS BladeGen.

Release 17.1 of BladeGen has no new features or enhancements.

4.3. BladeEditor


This section lists features and enhancements that are new in Release 17.1 of ANSYS BladeEditor.

Release 17.1 of BladeEditor has no new features or enhancements.




Chapter 5: CFD-Post Release Notes

The following sections contain release information for Release 17.1 of ANSYS CFD-Post.5.1. Supported Platforms5.2. New Features and Enhancements5.3. Resolved Issues and Limitations5.4. Updates Affecting Code Behavior

Note

If CFD-Post crashes while creating graphics on a machine with NVIDIA graphics hardware,try upgrading your graphics driver or set environment variable VIEWER_FACE_LIST to999.




This section lists features and enhancements that are new in Release 17.1 of ANSYS CFD-Post.

• New line types are available for plots. For details, see Line Type and FFT Line Type Options in the CFD-PostUser's Guide.

• Monitor Surfaces are now available for steady state runs (and remain available for transient runs). For details,see Monitor Surfaces: Frame Overview in the CFX-Pre User's Guide.


This section lists issues and limitations that have existed in previous releases, but that have been resolvedand removed in Release 17.1 of ANSYS CFD-Post.


This section contains a list of changes that may cause the computed results from ANSYS CFD-Post todiffer between Release 17.1 and Release 17.0.

• User Locations defined in ANSYS CFX-Pre are no longer available in ANSYS CFD-Post. Therefore, any stateor session files created in Release 17.0 of ANSYS CFD-Post that reference a User Location may not load aresults file generated in Release 17.1 consistently with previous results files from Release 17.0. To solve thisinconsistency, you must manually update any Release 17.0 state/session files to reference a Monitor Surface(Monitor Surfaces defined on a User Location are available in ANSYS CFD-Post in Release 17.1) instead of aUser Location. For details on specifying a Monitor Surface, see Monitor Surfaces: Frame Overview in the CFX-Pre User's Guide.




• In Release 17.1 of ANSYS CFD-Post, grouping multiple User Locations into a single Monitor Surface resultsin corrupted surface connectivity. There are two workarounds:

– Instead of grouping multiple User Locations into a single Monitor Surface, create one Monitor Surfaceper User Location.

– Group the location as a single Surface Group in ANSYS CFD-Post and export the group. Load the SurfaceGroup into ANSYS CFX-Pre as a single User Location and create a Monitor Surface based on this UserLocation.


CFD-Post

Chapter 6: Polyflow Release Notes

The following sections contain release information for ANSYS Polyflow 17.1.6.1. New Features6.2. Supported Platforms6.3. New Limitations in ANSYS Polyflow 17.16.4. Past Versions of ANSYS Polyflow Release Notes

6.1. New Features

ANSYS Polyflow 17.1 has no new features or enhancements.


Information about past, present, and future operating system and platform support is viewable via theANSYS website.

6.3. New Limitations in ANSYS Polyflow 17.1

There are no new limitations to note for ANSYS Polyflow 17.1. For limitations that are present in ANSYSPolyflow 17.1 but that were discovered during previous releases, see Known Limitations in ANSYSPolyflow 17.1 in the Polyflow User's Guide.

6.4. Past Versions of ANSYS Polyflow Release Notes

Previous versions of the ANSYS Polyflow Release Notes are installed as PDFs with the product.

To access these PDFs, point your web browser to

• For Windows:

path \ANSYS Inc\v171\polyflow\polyflow17.1.x\help\index.htm

• For Linux:

path \ansys_inc\v171\polyflow\polyflow17.1.x\help\index.htm

where path is the directory where you installed ANSYS Polyflow and x represents the appropriatenumber for the release (for example, 0 for polyflow17.1.0).




Chapter 7: Forte Release Notes

Several enhancements are included in ANSYS Forte CFD 17.1, as well as continuous improvements tospeed, robustness, and accuracy. The enhancements and defect corrections are listed in detail below,relative to the ANSYS Forte CFD 17.0 release.

7.1. New Capabilities and Enhancements in ANSYS Forte 17.1 vs. Forte 17.07.2. Resolved Issues Since Forte 17.07.3. Supported Platforms

7.1. New Capabilities and Enhancements in ANSYS Forte 17.1 vs. Forte17.0

This section lists new features and enhancements in Release 17.1 of ANSYS Forte CFD, organized bytopic.

Simulation Interface

• During mesh preview, per-region volumes are now reported. [Defect 2570]

• Added the ability to set up parameter studies with any option, including many output options. [Defect#3597, DE125075]

• Splash screens have been updated. [Defect #3593]

• Improved tooltip descriptions and explanations for Solution Adaptive Mesh options. [Defect #3560]

• Added the option to specify a volumetric region for a Solution Adaptive Mesh control in order to limitthe specified mesh refinement to that region.

Job Submission, Monitoring, and Running Options

• Spatially resolved .ftres files are now always closed as soon as they are complete, when the file completionis controlled by size or number of solution points. [Defect #3607]

Engineering Models and Computation

• Reduced the mesh-dependence of spray vapor penetration through enhancements to the gas- jetmodel, which also improve accuracy and robustness.

• Improved the speed of chemistry solution for all chemistry-set sizes.

Visualization and Analysis

• Added the wall surface temperature to the spatially resolved output, to allow visualization of the walltemperatures, which can be helpful in verifying imported spatially varying wall boundary conditions.[Defect 3580]



7.2. Resolved Issues Since Forte 17.0

Simulation Interface

• Fixed an error that occurred when greater than 20 species were added to a composition profile. [Defect#3588]

• Fixed an issue with the Run Simulation panel displaying stale parameter-study information when theelement related to the parameter-study is deleted (such as a nozzle, spark, or mesh control). [Defect#3407]

• Corrected the distance that the piston is shifted using the BDC=>TDC Utility to take into account pistonoffset when the offset is non-zero. [DE125077]

• Added a validation check for the Sector Mesh Generator to make sure that the crevice width is non-zero when a crevice block is included. [DE123863]

Job Submission, Monitoring and Running Options

• Corrected the Monitor window behavior so that it will no longer report errors when displaying fieldsthat have negative values. [Defect #3611]

• Corrected the default forte environment setup-file path written to the run_env.sh (Linux) and run_env.bat(Windows) scripts by the Simulation Interface during job preparation to refer to the correct defaultlocation for an ANSYS installation. [Defect #3610]

• 7. Corrected the status for solution-adaptive-meshing reported in the mesh_diagnostics.csv used duringjob monitoring. [Defect #3435]

Engineering Models and Computation

• The timing of a mesh-refinement control that is set to start or end at a specific time or crank angle isnow honored precisely. [Defect #3568]

• Fixed a bug in convection calculations that can cause inconsistency between species densities andmixture density. [Defect #3590]

• Corrected an issue with boundary condition enforcement for open, steady-flow systems. [Defect #3548]

• Corrected the piston offset calculation when the piston pin offset is set to a negative value. [Defect#3587]

Licensing

• Corrected an issue that caused more than one ANSYS-CFD license to be checked out when the SimulationInterface or Visualizer were open at the same time as a Forte compute job was running.


Information about present and future operating system and platform support is viewable via the ANSYSwebsite.


Forte



Chapter 8: Chemkin Release Notes

This is the first release for which ANSYS Chemkin-Pro is included in the ANSYS Unified Installer. In addition,there are several important enhancements in ANSYS Chemkin-Pro 17.1, relative to ANSYS 17.0 (Chemkin-Pro 15151). There has also been continuous improvements to robustness and speed. The enhancementsand defect corrections are listed in detail below, relative to the ANSYS 17.0 (Chemkin-Pro 15151) release.

8.1. New Capabilities and Enhancements Added Since 17.0 (15151)8.2. ANSYS Energico Add-On to Chemkin-Pro 17.18.3. ANSYS Reaction Workbench Add-On to Chemkin-Pro 17.1

8.1. New Capabilities and Enhancements Added Since 17.0 (15151)

Simulation and Analysis Enhancements

• A new detailed coal gasification capability has been added to allow simulation of pulverized coal gasi-fication processes starting from a known flow of entrained coal particles with specified composition.The capability is introduced through new and modified surface chemistry formulations that, togetherwith an appropriate gas-phase chemistry mechanism, allow detailed description of the multiphasechemical processes in a coal gasifier. Such surface mechanisms may be used with the Particle Trackingoption with 0-D batch reactors, Perfectly Stirred Reactors (PSRs), Plug Flow Reactors (PFRs) and reactornetworks consisting of PSRs and PFRs. A new tutorial has been added to introduce this capability.

• Improved the speed of the Chemkin-Pro solver for all transient simulations and for all mechanism sizes.

• For all Internal Combustion (IC) Engine models, the following enhancements were added:

– When a piston offset is defined in IC engine simulations, the crank angle values in the solution outputare now referenced to the “actual”TDC (top dead center) of the cylinder, rather than the crank-armlocation, to be consistent with ANSYS Forte CFD. In other words, the simulation crank angle is definedto be 0 at the minimal cylinder volume. In previous versions, the TDC of the crank shaft rotation wasused as the reference for the crank angle values.

– An option to specify the engine’s “effective compression ratio”, was added. This option can be usedinstead of specifying the Intake Valve Closure (IVC) crank angle to specify the starting point of an ICengine simulation. The effective compression ratio is defined as the ratio of cylinder volume at IVCand the clearance volume (i.e., cylinder volume at TDC).

– For all IC engine models, Chemkin will automatically estimate the fuel lower heating value based onthe fuel (surrogate) composition specified in the initial gas charge in the cylinder if the fuel heatingvalue is not explicitly provided as an input.

• For the Spark-Ignition (SI) Internal Combustion Engine (ICE) Zonal Model, the convergence performanceis improved.

8.2. ANSYS Energico Add-On to Chemkin-Pro 17.1

This is the first release for which ANSYS Chemkin-Pro with the Energico Add-On are included in theANSYS Unified Installer. In addition, there are several important enhancements in ANSYS Energico 17.1,



relative to ANSYS 17.0 (Chemkin-Pro 15151). The changes are listed in detail below, relative to the ANSYSChemkin-Pro 15151 release.

New Capabilities and Enhancements Added Since 17.0 (15151)

User Interface and Setup Enhancements

• Energico can now read ANSYS Fluent setup and solution (*.cas/*.dat) files directly, without any needto export solutions to CGNS. This greatly speeds the setup, especially for large mesh cases. In addition,the direct read allows pre-population of many settings, such as units, variable and species mapping,eliminating many opportunities for user error.

• Energico can now handle polyhedral meshes, whether they are imported via exported CGNS or readin through the direct access of an ANSYS Fluent cas/dat file.

Equivalent Reactor Network Enhancements

• See Chemkin-Pro release notes for general Chemkin enhancements.

8.3. ANSYS Reaction Workbench Add-On to Chemkin-Pro 17.1

This is the first release for which ANSYS Chemkin-Pro and the Reaction Workbench Add-on are includedin the ANSYS Unified Installer. In addition, the enhancements and defect corrections are listed for ReactionWorkbench in detail below, relative to the ANSYS 17.0 (Chemkin-Pro 15151) release.

New Capabilities and Enhancements Added Since 17.0 (15151)

Mechanism Reduction and Related Operations

• Added the ability to apply mechanism reduction methods for chemistry sets that include surfacechemistry.


Chemkin

Part III: ANSYS Electronics Products

Release notes are available for the following ANSYS Electronics products:

Icepak (p. 37)

Chapter 1: Icepak Release Notes

Release 17.1 of the ANSYS Icepak application offers most of the capabilities from previous releases plusnew features and enhancements.

• Introduction (p. 37)

• New and Modified Features in ANSYS Icepak 17.1 (p. 37)

• Resolved Issues and Limitations in ANSYS Icepak 17.1 (p. 37)

1.1. Introduction

ANSYS Icepak 17.1 is a release of ANSYS Icepak that has new features and resolved issues and limitations.

1.2. New and Modified Features in ANSYS Icepak 17.1

• Model Import/Export

– Added the ability to import Apache RedHawk Chip Thermal Model (CTM) powermap files and exportRedHawk Back Annotation data. See Section Apache RedHawk Chip Thermal Model (CTM) PowermapFiles of the User’s Guide.

– Added the ability to import outline cutouts via IDF import. See Section Reading an IDF File into ANSYSIcepak of the User’s Guide.

• Model Building

– Added the ability to use SIwave powermaps as profiles on PCB objects. See Section Adding a PCB to YourANSYS Icepak Model of the User’s Guide.

• Reports

– Added the ability to display solar load values on exposed surfaces in the Message window. See SectionThe Report Menu of the User’s Guide.

1.3. Resolved Issues and Limitations in ANSYS Icepak 17.1

• User Interface

– Invisible objects are selected when drawing a selection region in the graphics window. (118918)

– User cannot edit die thickness for flip-chip type packages. (119156)

• Project File

– The Auto-save interval is saved with the project. (121243)

• Import/Export



– IDF passive component filter doesn't work for several Rs, Cs, and Ls. (103298)

– When attempting to import an ECAD file, a licensing error occurs when running two sessions of Workbenchto import the same ECAD file at the same time. (114427)

– Error message for unsupported ANF V4 import is not user-friendly. (119024)

– IDF import does not import board cutouts. (120666)

– Icepak crashes when importing conducting layers with 0 conductivity values, reassigning those layers asdielectric. (121755)

– When importing SIwave dc powermaps, Icepak does not adjust elevations for dielectric layer thickness,which may result in incorrect power values applied to portions of the board. (123274)

– ANF import fails when padstack pads contain invalid polygonal pad geometry defined with only onevertex. (123572)

– ANF import fails from NETEX third party generated ANF files due to missing pad type data in padstackdefinition. (124314)

• Meshing

– Editing PCB properties does not invalidate mesh if there are no geometry changes. (118963)

– For a specific model, only part of a Wall object is meshed when 2D multi-level meshing is enabled. (122666)

– Small gaps between assemblies may not be resolved if mesh element size is much larger, leading to incor-rect handling of the assembly boundary during solve. (121777)

• Solver Setup

– On the Trials tab of the Parameters and optimization panel, you can't select variable values when thetrials are set to Selected values. (121579)

• Solution

– In parallel, the monitor plot frequency is applied to only point monitors and not surface monitors. (119263)

• Post-processing (Solver)

– An object's actual surface area is reported under Trial report. (112595)

• Reports

– For objects with default material settings, when performing a .csv export of materials, ":default" is exportedrather than the specific information of that default material. (118941)

– Temperature data is missing in point report after switching from transient simulation and running asteady-state simulation. (120343)

– For a specific model, Icepak reports the incorrect heat flow for fan and opening objects. (123900)

• Workbench Coupling

– Icepak does not open when editing the Setup cell in Workbench. (119458)


Icepak

– For a specific model, Icepak exports the incorrect temperature values to Workbench. (120862)

– When Maxwell inputs are modified upstream, EM losses not imported in Icepak. (121792)



Resolved Issues and Limitations in ANSYS Icepak 17.1

Part IV: ANSYS Geometry & Mesh Prep Products

Release notes are available for the following ANSYS Geometry & Mesh Prep products:

DesignModeler (p. 43)SpaceClaim (p. 45)CAD Integration (p. 47)Meshing (p. 49)IC Engine (p. 51)ICEM CFD (p. 53)Fluent Meshing (p. 55)

Chapter 1: Geometry Release Notes

This section summarizes the new features in DesignModeler Release 17.1:

Export of Symmetry/Enclosure Data

The creation of named selections and coordinate systems during model transfer for symmetry planesin the Symmetry and Enclosure features is now controlled by Export Symmetry / Export Enclosureproperties. This allows users to skip the creation of these additional attributes if they aren't desired intheir analysis downstream. The default value for the Export property is yes.

For more information, see 3D Modeling> Advanced Features and Tools> Symmetry and/or Enclosurein the DesignModeler User’s Guide.

Model Units Property

When importing ACIS files, DesignModeler will now infer the model units from the ACIS file itself bydefault. The user may still override the model units setting by choosing a specific length unit.

For more information, see Menus> File Menu> Import External Geometry File> Import Properties>Model Units Property in the DesignModeler User’s Guide.

Parameter Property

Parameters from imported CAD sources can now be processed via three options: None, Independent,or All. Independent is equivalent to the behavior in prior versions, whereas All will now import read-only parameters in addition to independent, editable parameters. When promoted, the parametersshow as output parameters in the Parameter Manager.

For more information, see Menus> File Menu> Attach to Active Geometry> Attach Properties> ParameterProperty in the DesignModeler User’s Guide.



Chapter 2: SpaceClaim

For detailed information specific to SpaceClaim 2016, see the most-recent release notes on the ANSYSCustomer Portal (support.ansys.com) at Knowledge Resources> Online Documentation> Geometry.

To view previous release notes, select applicable release under the Previous Releases menu at KnowledgeResources> Online Documentation. Alternatively, see Downloads> Previous Releases> ANSYS Document-ation and Input Files to select the applicable Release Documentation file.

This section summarizes the new features in SpaceClaim Direct Modeler Release 17.1:

ANSYS SpaceClaim Direct Modeler

See the Installation section of this document for information specific to the ANSYS SpaceClaim DirectModeler product.

Import Preferences

A preference has been added to SpaceClaim Direct Modeler that allows users to force geometry importsto use SpaceClaim's reader, overriding the configuration specified in the CAD Configuration Manager.

Teamcenter Support

SpaceClaim Direct Modeler geometry can now be saved to and opened from Teamcenter, via the File> Save To Teamcenter menu option.






Chapter 3: CAD

Note

Support for the Plug-in Creo Parametric’s Wildfire 5.0 version is expected to be discontinuedafter the release of ANSYS 17.x

This section summarizes the new features in CAD Integration Release 17.1:

Coordinate Systems Filter Prefixes

An unrestricted number of prefixes (including exclusion prefixes) can now be applied to the CoordinateSystems option. The geometry import preference keys (parameter, attribute, named selection, and co-ordinate systems) all support the negation (-) option in the preference list.

For more information, see Overview> Project Schematic Preference Related to CAD Integration> GeometryPreferences> Advanced Geometry Options in the CAD Integration section of the ANSYS Help.

Parameter Property

Parameters from imported CAD sources can now be processed via three options: None, Independent,or All. Independent is equivalent to the behavior in prior versions, whereas All will now import read-only parameters in addition to independent, editable parameters. When promoted, the parametersshow as output parameters in the Parameter Manager.

For more information, see Menus> File Menu> Attach to Active Geometry> Attach Properties> ParameterProperty in the DesignModeler User’s Guide.

Windows 10 Support

The following are now supported on the Windows 10 operating system:

• ACIS (Reader)

• AutoCAD (Reader)

• Autodesk Inventor (Reader)

• CATIA V4 (Reader)



• Creo Elements/Direct Modeling (Plug-In)

• Creo Parametric (Reader)

• GAMBIT (Reader)



• JT (Reader)

• NX (Reader)

• Solid Edge (Reader)

• SolidWorks (Reader)

Geometry Interfaces Update for New CAD Releases

Geometry interfaces are updated to support new CAD releases including:

• CATIA V5 V5-6R2016 (Reader)

• CATIA V6 R2015x (Reader)

• SolidWorks 2016 (Reader)

• Teamcenter Unified Architecture 11.2 with NX 10.0 only

For detailed version support information, see CAD Integration> Geometry Interface Support in the CADIntegration section of the ANSYS Help.

Information about past, present and future CAD, operating system and platform support is viewablevia the ANSYS, Inc. website (Support> Platform Support).


CAD

Chapter 4: Meshing Application Release Notes

This release of the Meshing application contains many new features and enhancements. Areas whereyou will find changes and new capabilities include the following:

4.1. Inflation Enhancements4.2. Performance and Quality Improvements

Many of the enhancements detailed in the Mechanical Application Release Notes (p. 3) are relevantto the Meshing application. In particular, the following sections describe enhancements that can alsoaffect Meshing:

• General Enhancements (p. 3)

• Performance Enhancements (p. 4)

• Graphics Enhancements (p. 4)

• Geometry Enhancements (p. 4)

• Contact and Connection Enhancements (p. 4)

4.1. Inflation Enhancements

When applying inflation, if you set a different Number of Layers or Maximum Layers on adjacent re-gions, stair stepping will now be used between the regions.

4.2. Performance and Quality Improvements

The following performance and quality improvements have been made at Release 17.1:

• For the sweep method, the mesh pattern is improved on source faces.

• For fracture meshing, mesh quality and pattern are improved at the crack tip.

• For surface meshing, the mesh pattern is improved, and mesh failures have been reduced.



Chapter 5: IC Engine Release Notes

Release 17.1 of IC Engine has no new features or enhancements.



Chapter 6: ICEM CFD Release Notes

ICEM CFD Release 17.1 development efforts included enhancement of ANSYS ICEM CFD as a standaloneapplication as well as continued development of its underlying technology exposed within other ANSYSapplications such as Workbench and SpaceClaim.

Topics include:6.1. Highlights of ANSYS ICEM CFD 17.16.2. Documentation

6.1. Highlights of ANSYS ICEM CFD 17.1

ANSYS ICEM CFD 17.1 includes new features and improvements in the following areas:6.1.1. Blocking visualization6.1.2. Editing blocks6.1.3. Replay Control editor6.1.4. Miscellaneous

6.1.1. Blocking visualization

New options are available for visuallizing blocking:

• Tools for selecting and deselecting blocks for Blanking have been improved. Menu options have beenadded to blank blocks by type (mapped, swept, free). For manual selection, you can now deselect ablock by holding the Shift key while clicking.

• A Find Worst elements option has been added to the Pre-Mesh menu in the display tree. The criterionfor determining the worst elements is selected in the Settings → Meshing Options → Hexa Meshingmenu.

• The Pre-Mesh Quality Check and Find Worst elements tools have enhanced support for all types ofmesh elements.

• An option to Show Hidden vertices has been added to Blocking → Vertices in the Display tree.

6.1.2. Editing blocks

New options are available for splitting blocks:

• The Split Block → Imprint Face option supports single loops; multiple loops of edges, either nestedor separated; and loops that include boundary edges.

• A By imprint option has been added to the Split Block → Split Free Block menu to imprint edges andsplit the free block in a single operation.

• A Merge parallel blocks control has been added to the Edit Block → Convert Block Type → Sweptoption to merge all adjacent mapped faces prior to sweeping.



• The Edit Block → Convert Block Type → Convert free block free face to mapped option can nowconvert faces with more than four sides.

• The Edit Block → Merge Faces option supports Mapped or Free faces.

• A Force merging option has been added to Blocking → Merge Vertices. If enabled, mapped faces offree blocks are converted to free faces where required to complete the merge.

• An Automatic Spline option has been added to the Edit Edge → Split Edge Method list.

6.1.3. Replay Control editor

An internal text editor has been added for Replay Control scripts. You can choose to use the internaleditor or an external text editor in the Settings → General menu. The ICEM CFD application windowremains unlocked when using the internal editor.

6.1.4. Miscellaneous

• The interface and options for Import Model have been improved.

6.2. Documentation

All documentation for ANSYS ICEM CFD Release 17.1 is accessible using the Help menu. Visit theANSYS ICEM CFD website for more information.

6.2.1. Tutorials

To access tutorials and their input files on the ANSYS Customer Portal, go to http://support.ansys.com/training. The Customer Portal also contains links for training, for hard copies of the Tutorial manual, orfor PDF format copies of the tutorials.


ICEM CFD

http://www.ansys.com/Products/Other+Products/ANSYS+ICEM+CFD



Chapter 7: Fluent Meshing Release Notes

The following sections contain release information for ANSYS Fluent Meshing Release 17.1:7.1. Changes in Product Behavior from Previous Releases7.2. New Features

7.1. Changes in Product Behavior from Previous Releases

• For CAD import, there is now an additional option for feature extraction. This option is enabled by default.

• For CAD import, the part name is added to the object and zone names on import only when the objectgranularity is set to body, by default. Hence, when importing with the object granularity set to part or file,by default, the part name is no longer included in the zone names or added as a prefix to face zone labelsand region names.

• The mesh check will now fail if cells have faces with very small non-zero face areas. Such cells should becorrected before computing the flow solution.

• Non conformals will be used as quad-tet transition elements for pre-partitioned parallel meshing.

7.2. New Features

The new features available in the meshing mode in Fluent include enhancements to many existingfeatures and improved robustness through defect fixes.

CAD ImportThe following enhancements have been made:

• There is now an additional option for feature extraction which is enabled by default.

• A new command enables you to choose whether to add the part names from the CAD file to the objectand zone names on import. The part name is added to the both object and zone names on import onlywhen the object granularity is set to body, by default.

• You can use the CAD Assemblies option to obtain a representation of the CAD tree in Fluent Meshingon CAD import.This mode offers additional tools for the imported CAD data.

– The CAD assemblies tree enables faster visualization which saves time in part management for large,complex models comprising multiple assemblies.

– It enables re-importing or updating of selected parts or bodies using different faceting qualities andtopology representations from a neutral database file.

– Geometry and mesh objects can be easily created for only those assemblies, parts, or bodies that areneeded for the analysis. Other assemblies, parts, or bodies can be simply suppressed.

– The geometry and mesh objects are linked to the corresponding CAD objects (which are then locked),enabling quick design changes and updates.



– Labels can be assigned to entities, and these are preserved throughout the object-based meshingworkflow in Fluent Meshing.


Fluent Meshing

Part V: ANSYS Simulation Products

Release notes are available for the following ANSYS Simulation products:

Workbench (p. 59)ANSYS Customization Toolkit (ACT) (p. 63)RSM (p. 65)EKM (p. 67)DesignXplorer (p. 71)

Chapter 1: Workbench

The ANSYS Workbench platform offers many new features and enhancements. Areas where you willfind changes and new capabilities include the following:

1.1. ANSYS Workbench1.2. External Connection1.3. Engineering Data Workspace1.4. External Data1.5. External Model1.6. Enhancement to Mechanical Model Cells1.7. FE Modeler1.8. System Coupling1.9.TurboSystem Release Notes1.10. CFD-Post in Workbench

1.1. ANSYS Workbench

Enhancements have been made to the following areas:1.1.1. ANSYS Workbench-EKM Portal Enhancements

1.1.1. ANSYS Workbench-EKM Portal Enhancements

Job Submission from Workbench to EKM

A new Submit to Portal option enables you to submit solutions and updates from Workbench to anEKM Portal. See Submitting Jobs to an EKM Portal in the Workbench User's Guide.

Jobs submitted to an EKM Portal can be monitored using the EKM web application or the WorkbenchJob Monitor.

1.2. External Connection

No enhancements have been made to the External Connection add-in.

1.3. Engineering Data Workspace

No new Engineering Data enhancements have been made for ANSYS Workbench 17.1.

1.4. External Data

No enhancements have been made to the External Data add-in.

1.5. External Model

For the 17.0 release, the following new features are now available in the External Model system:



• The External Model component’s Process Coordinate Systems property enables the External Modelsystem to import any Cartesian and Cylindrical coordinate systems defined in mesh files. This data istransferred to downstream Mechanical systems.

• From the External Model system, you can now choose to import node- and/or element-based compon-ents from solid and shell finite element mesh files to Mechanical as Named Selections. You can alsospecify components keys in order to filter the components contained in your mesh file. The followingnew properties are available for the External Model component system to support these new capabil-ities.

– Process Nodal Components

– Nodal Component Key

– Process Element Components

– Element Component Key

1.6. Enhancement to Mechanical Model Cells

You can use an External Data component to import a circuit board’s trace layout file (TGZ, Ansoft ANF,or Cadence BRD, MCMP, or SIP) for use by a Mechanical system’s Model cell. The External Data com-ponent also enables you to perform rigid transformations to the trace file.

1.7. FE Modeler

Release 17.1 for FE Modeler has no new features or enhancements.

1.8. System Coupling

The following enhancements were made to System Coupling for Release 17.1:

• CFX supports two-way thermal data transfer with System Coupling. For details, see Coupling CFX to an Ex-ternal Solver: System Coupling Simulations in the CFX-Solver Modeling Guide.

1.9. TurboSystem Release Notes

TurboSystem is a set of software applications and software features that help you to perform turboma-chinery analyses in ANSYS Workbench. For details, see Introduction in the TurboSystem User's Guide.

These release notes cover:

• Turbo Setup

• Vista AFD, Vista CCD, Vista CPD and Vista RTD

• Vista TF

These release notes do not cover:

• ANSYS BladeModeler (see ANSYS BladeModeler Release Notes)

• TurboGrid (see TurboGrid Release Notes)


Workbench

• CFX-Pre (see CFX Release Notes)

• CFD-Post (see CFD-Post Release Notes)

Note

After reviewing the TurboSystem release notes, you are encouraged to see Usage Notes,which describes some known TurboSystem workflow issues and recommended practices forovercoming these issues.

1.9.1. Supported Platforms



This section lists features and enhancements that are new in Release 17.1 of TurboSystem.

Release 17.1 of TurboSystem has no new features or enhancements.

1.10. CFD-Post in Workbench

The format/style of CFD-Post reports produced from Workbench are consistent with general Workbench-produced reports; reports from standalone CFD-Post continue to use the standard CFD-Post format.



CFD-Post in Workbench


Chapter 2: ANSYS ACT

The following enhancements have been added to ANSYS ACT 17.1:

ACT Console Enhancements

The following enhancements have been made to the ACT Console:

Flexible Exposure in ANSYS MechanicalWhen exposed in the ANSYS Mechanical application, the ACT Console window has improved placementflexibility, providing a better user experience when working with Mechanical extensions.

Type Icons for Auto-Completion SuggestionsEach auto-completion suggestion includes an icon indicating whether the suggestion is a method, property,namespace, enumeration, variable, or type.

Enhanced Auto-Completion Tooltip FunctionalityACT Console auto-completion tooltips now include syntax color-coding and can provide additional typesof data, including scope variables, .NET properties, prototype information, details on overloaded methods,and warning messages.

Repeat Icon in Command History WindowIn the ACT Console’s Command History window, a new “repeat” icon enables you to repeat the currentstatement.

For more information, see ACT Console.

Multiple-Step Custom Templates for AIM

Multiple-step custom templates provide expanded process-compression and automation capabilitiesfor AIM. You can now create a custom template that walks end users step-by-step through a complexsimulation in AIM. You can also provide custom help of two types: step-level help that displays in thecontext-sensitive help panel, and property-level help that displays in the field-level help pop-ups.

For more information, see ACT Simulation Wizards and AIM Custom Template (Multiple-Step).

Custom Workflow Enhancements

ACT Custom Workflow functionality includes multiple project-level, workflow-level, and task-level en-hancements:

Project-Level Enhancements

• Project-level ACT APIs off the master ExtAPI entry point that provide access to items in the WorkbenchProject Schematic



Workflow-Level Enhancements

• Global schematic callbacks that listen and respond to schematic activity, enabling the execution ofcustom processes or actions at specific times in the schematic workflow

Task-Level Enhancements

• General schematic data transfer capabilities with installed support extending to Mechanical-basedcomponents

• Task data model restructuring for expanded functionality in defining tasks

• Streamlining of available task-based retrieval queries

• Standardized task property interactions, including path-based property control support, string-basedproperties, option-based properties, and property default values

• Callback support for task properties

• Callback argument refactoring for tasks and task-level RSM job and context menu definitions

• Improved error handling for task callbacks

• Ability to define multiple task inputs

For more information, see Capabilities for Custom ACT Workflows in Workbench.

ACT Functionality in SpaceClaim

You can now use ACT functionality in SpaceClaim without applying a separate package to your install-ation.


ANSYS ACT

Chapter 3: Remote Solve Manager (RSM)

In this release of Remote Solve Manager, changes and enhancements include:3.1. New Features and Enhancements3.2. Resolved Issues and Limitations


• RSM now supports the Explicit Dynamics and Rigid Body Dynamics solvers.


• When configuring RSM for use with EKM, the ClusterConfiguration (.rsmcc file) for an SGE/UGE cluster willnow support parallel jobs when it is configured as follows:

<nativeSetting name="SGE_PE_SHARED">your_smp</nativeSetting> <nativeSetting name="SGE_PE_DISTRIBUTED">your_mpi</nativeSetting>

• When a component update is submitted from Workbench, and RSM is not set up correctly, the setup failurewarning message no longer causes Workbench to freeze.



Chapter 4: ANSYS EKM Release Notes

ANSYS Engineering Knowledge Manager (EKM) 17.1 consists of EKM, the EKM server product, and itscompanion web application. The following sections provide an overview of new features and enhance-ments in ANSYS EKM 17.1.


If you have used previous versions of EKM, Release 17.1 offers several changes and improvements:

Installation and Configuration

• You can configure EKM to automatically retrieve each user's User name, First name, Last name and Emailfrom an LDAP server, saving time and effort when creating or updating EKM user accounts.

• If users will be submitting jobs to EKM from Workbench, and Workbench and RSM are installed on differentmachines, and use different paths to refer to the same physical job directory, an optional pathMappingssetting in the ekm.xml file enables you to map directory paths on the Workbench machine to paths usedon the RSM machine or cluster node where jobs run.

Data Management

• Users with a Basic access level can access and execute shared search queries.

Job Management

• Changes to the job submission wizard provide an enhanced user experience with improved flow, navigation,and ease of use.

• The built-in job templates now support pre-16.0 solvers, and the chosen Solver version is reported in thejob status view.

• Administrators can now track users' cluster usage by adding a custom cluster job name field to the jobsubmission wizard. The name entered by the user is reported in the RSM job log, creating a traceable pieceof data that links the EKM job to a specific account.

• In Cloud deployments, if you find the traffic to the Cluster Monitor page to be too heavy, you can optionallyadd a maxHttpClientConnections setting to the <clusterMonitor> setting in the ekm.xml fileto allow more concurrent connections between the HttpClient and CycleCloud. If unspecified, the defaultvalue is 10.

• EKM now supports job submission from Workbench via Workbench's new Submit to Portal update optionfor solutions, design point updates, and component updates.

• When running a Fluent server-mode job, using the Interrupt action in the Job Monitor stops Fluent andsaves a case and data file whose filenames indicate when the solution was stopped.

• In the CFX job template, the default Partition Type is now MeTis k-way.



• When running a CFX job, live convergence monitors now appear in the job status view, and you can choosewhich monitors you want to display. You can also stop the solution if desired.

• When setting up an interactive job, if you select a queue that is associated with a Neutro job scheduler, youcan submit the job to a visualization host with a particular tag. If a node does not have a tag, it will categorizedby the amount of available memory.

Process Management

• When defining a node, batch node or custom dialog node in a process template, a new Allow assignee tobe changed option lets you prevent the task's assignee from being changed to another user.

• When defining an auto node in a process template, a new Assignee setting lets you specify whether theautomated task will run in the EKM session of the Process Creator or the Previous Node Assignee.

General Enhancements

• EKM now runs on the Microsoft Edge browser.

• EKM is no longer supported on Internet Explorer 10.

4.2. Issues Resolved in this Release

Below are the major issues that have been resolved since the release of 17.0.

• The ANSYS EKM server product installation on Windows no longer prevents you from setting the EKM tempdirectory to a UNC path.

• When configuring JBoss to communicate with the front-end web server via the mod_cluster load balancer,the HTTP and AJP protocols in the JBoss configuration now contain max-post-size and max-paramet-ers settings. The max-post-size setting prevents errors when uploading large files to EKM via the FileTransfer Client. The max-parameters setting prevents an exception from occurring when adding a designpoint to a project that contains a large number of design points.

• In Cloud deployments, EKM can now better handle heavy traffic to the Cluster Monitor page to ensureusers get access when they need it. If necessary, an optional maxHttpClientConnections parametercan be added to the <clusterMonitors> setting in the ekm.xml file to increase the number of concurrentconnections between the HttpClient and CycleCloud.

• A multi-configuration simulation run using the built-in CFX job template no longer fails. The CFX job templatehas been updated.

• When a download alert is set on a Workbench project archive (.wbpz file), you will no longer receive anemail alert for each individual file in the archive. A single email will be sent instead.

• The simulation details report is now properly updated following a project update or design point updateof an R17 Workbench project.

• When creating a connection to a file or folder on a remote file server, an error no longer occurs if the remotefile server address points to a local path on the EKM server, and the rsmLauncherURL setting in theekm.xml file is pointing to a different machine.

• When using the command line during an MAPDL job that was started with the Start MAPDL job template,specifying a path with a space no longer causes the solver to hang.


EKM

• When setting up an Electronics job using the built-in job template,“AccessControlException" errors are nolonger displayed, and "Batch options" are properly displayed.

4.3. Issues and Limitations

All issues and limitations known at the time of release are listed in Appendix B in the EKM User’s Guide.



Issues and Limitations

Chapter 5: DesignXplorer

The following enhancements have been added to ANSYS DesignXplorer 17.1:

Auto-Refinement for Genetic Aggregation Response Surfaces

The Genetic Aggregation response surface offers automatic refinement based on user-defined tolerances.Once begun, the auto-refinement process handles design point failures and continues until one of thestopping criteria has been met. Refinement properties enable you to determine the number and spreadof your refinement points, indicate how output variables will be considered, and specify the minimumallowable distance between refinement points. For more information, see Genetic Aggregation andGenetic Aggregation Properties.

You can enable auto-refinement in the Tolerances table by selecting at least one output parameterfor refinement and specifying a tolerance value for it. The auto-refinement will include only outputswith tolerance values defined. For more information, see Genetic Aggregation Tolerances Table.

A Convergence chart is available for Genetic Aggregation response surfaces with at least one outputparameter selected for auto-refinement in the Tolerances table. The X-axis shows the number of refine-ment points. The Y-axis displays the ratio between the Maximum Predicted Error and the Tolerance foreach output parameter, with each refined output represented by a curve corresponding to this ratio.For more information, see Genetic Aggregation Convergence Chart.

Computation Enhancements for the Local Sensitivity Chart

Modifications to how the response surface Local Sensitivity chart calculates values provide moreconsistent normalization of results. A new Axes Range property determines the range used for thechart’s Y-axis, enabling you to specify whether axes bounds correspond to the range given by the Min-Max Search results or to the range of the calculated data with the largest variation.

For more information, see Using the Local Sensitivity Chart.

Improved Performance for Non-Parametric Regression Response Surfaces

The Non-Parametric Regression response surface algorithm has been refactored to improve performance,resulting in faster, more efficient updates for large numbers of design points.



Part VI: ANSYS AIM

The following enhancements are available in ANSYS, Inc. Release 17.1 (ANSYS AIM). Accessible via theHelp Viewer in the product and online via the ANSYS Customer Portal, the release notes are intendedto provide an overview of the product. Enhancements published in the Release 17.0 release notes areincluded for reference.

Chapter 1: Advisories

In addition to any incompatibilities noted within the release notes, known non-operational behavior,errors and/or limitations at the time of release are documented in the ANSYS, Inc Known Issues andLimitations document, accessible via the ANSYS Customer Portal (account required). The AIM downloadpage is not publicly-accessible. First-time users of the customer portal must register to create a password.See the ANSYS Customer Portal for information about ANSYS service packs, Customization, and anyadditional items not included in the Known Issues and Limitations document.



Chapter 2: Enhancements in AIM 17.1

The following enhancements have been made to ANSYS AIM for Release 17.1.

• The ability to simulate static electromagnetic fields using a guided workflow with an adaptive solution. Options include the computation of magnetic flux density, magnetic field intensity, current density,Ohmic loss, magnetic force, magnetic torque and inductance.

• Enhanced material properties include linear and nonlinear magnetic materials for many common ma-terials.

• The ability to simulate solid heating due to electromagnetic effects by using physics coupling totransfer heat rate to a thermal simulation.

• The ability to model polymer extrusion using a guided workflow to simulate various aspects of thedeformation of molten plastic pushed through a die. Options include: simulating the flow within thedie, predicting the extrudate shape for a particular die, and predicting the required die shape in orderto obtain a desired extrudate shape.

• Material library enhanced to enable the modification and specification of appearance properties.

• The ability to perform static structural and modal analysis using shell elements including the ability tocreate a mid-surface from solid geometry using the Geometry Modeling task.

• The ability to apply displacement and/or rotation boundary conditions remotely on model topologyor a construction point.

• Enhanced displacement boundary condition allows components to be unconstrained by entering “Free”as an expression.

• Enhanced support boundary condition, which includes fixed (default), frictionless and user specifiedoptions.

• The ability to automatically hide bodies not applicable to a contact or joint definition for structural,thermal and electric conduction stimulation.

• The ability to automatically hide bodies not applicable for a region when a physics condition is selectedfor fluid flow and extrusion simulation.

• Enhanced solution monitors that include solution convergence charts for nonlinear structural, thermaland electric solutions.

• Enhanced solution monitors for fluids that includes automatic filtering of monitors by defined physicsmodels.

• Enhanced performance and memory usage for conjugate heat transfer models with complex topology(many faces).



• Enhanced solver meshing control for fluids simulation to control the conversion of the mesh to poly-hedral.

• Enhanced solver transcript for fluids simulation that includes information on partitioning, mesh statistics,flow balances and wall clock times.

• The ability to include multiple interface generators with a specific scope and tolerance for conjugateheat transfer simulation.

• Enhanced physics task layout that includes improved organization and physics specific naming conven-tions.

• Enhanced navigation bar that collapses to current navigation for simpler model navigation.

• Enhanced next step suggestion intelligence.

• The ability to include structural mass as a calculated value for inclusion in design point studies or op-timization.

• Enhanced custom templates that include multiple steps to provide greater flexibility for the creationof custom applications.

• Geometry Modeling is now enabled by default in the standard Simulation Process Templates.

• Enhanced Geometry Modeling look-and-feel for improved consistency and easier navigation.

• Improved persistence of locations and named selections for enclosures and extracted flow volumescreated in Geometry Modeling.

• Sheet Metal and Midsurface tools are now available in Geometry Modeling.


Enhancements in AIM 17.1

Chapter 3: Enhancements in AIM 17.0

The following enhancements have been made to ANSYS AIM for Release 17.0.

• The ability to create and edit geometry directly within the AIM Study.

– Based on the ANSYS SpaceClaim Direct Modeler.

– Includes enhanced performance for geometry updates and automated parameter creation.

• The ability to manage, update and review design points directly from within the AIM Study using DesignPoint Dashboard.

• Enhanced graphics display renders bodies based on material appearance.

– Material library enhanced to include appearance settings for many common materials.

• The ability to model strain-life based (low cycle) fatigue.

• The ability to apply force loads remotely on model topology or a construction point.

• The ability to automatically generate region interfaces for conjugate heat transfer based on surfaceproximity.

• Enhanced boundary conditions for compressible flow including a far field boundary condition tomodel free-stream compressible flow at infinity.

• Enhanced solution monitoring including multiple convergence and residual monitors, and the abilityto review multiple charts during the solution update.

• The ability to interrupt, interrogate results and continue the solution from an interrupted state for allphysics.

• Enhanced documentation including field level help for any property.

• The ability to connect to the simulation portal (EKM) from within the AIM Study.

• Enhanced volumetric mapping including radial basis function mapping for volumetric temperaturedata.

• The ability to automate a simulation in AIM by executing a Workbench Project wizard on the AIM projecttab.

• Enhanced custom simulation process templates including the ability to include field level help, radioand multi-select lists as part of a custom template.

• Improved fluid initial conditions - consistent with boundary conditions, more granular.



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