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3/23/2007© 2007 ANSYS, Inc. All rights reserved.

Inventory #0024983-1

BladeModeler 11.0ANSYS, Inc. Proprietary

BladeModelerBladeModeler

3.0 TurboSystem Overview3.0 TurboSystem Overview

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Training Manual

OutlineOutline

• Workbench Environment• BladeModeler– BladeGen

• Vista CCD/CPD

– BladeEditor• TurboGrid• Turbo System - Assisted Workflow– Automated, Unstructured Blade Meshing– Turbo Pre– Turbo Reports

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Training Manual

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• Vista CCD/CPD


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Training Manual

What is ANSYS Workbench?What is ANSYS Workbench?

• ANSYS Workbench is a new-generation solution from ANSYS that provides powerful methods for interacting with the various ANSYS solvers. This modular environment provides a unique integration with CAD systems, and your design process, enabling the best CAE results.

WORKBENCH

External CAD

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Training Manual

• There are two typical workflows used for CFD analysis of turbo machinery in Workbench

1. With a TurboGrid License

WorkflowWorkflow

BladeGen

TurboGrid

Turbo Pre

Solver

Turbo Post

Create blade geometry

Create structured mesh

Set up boundary conditions and physics

Iterates to converged solution

Analyze solution

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WorkflowWorkflow

2. Without a TurboGrid License

BladeGen

DesignModeler

(BladeEditor)

CFX-Mesh

Turbo Pre

Solver

Create blade geometry

Import geometry to DesignModeler using

BladeEditor feature

Create unstructured mesh

Set up boundary conditions and physics

Iterates to a converged solution

Analyze solution

Turbo Post

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Structural AnalysisStructural Analysis

• Workbench can also be used for structural analysis of turbo machinery components

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Training Manual

Workbench DatabasesWorkbench Databases

• There are various types of files used by Workbench, each differentiated by the file extension

.wbdb

Workbench

Database.agdb

ANSYS Geometry

Database

.dsdb

Design Simulation

Database

.cmdb

CFX-Mesh Database

.cmdat

CFX-Mesh Data

.fedb

Finite Element

Database

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Training Manual

• Launching Workbench modules:• Workbench modules

are all launched using the ANSYS Workbench icon, under “Start Menu > Programs > ANSYS 11.0”

• Users can launch the Workbench from within a supported CAD system

The ANSYS Start PageThe ANSYS Start Page

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Training Manual

The ANSYS Start PageThe ANSYS Start Page

• After launching ANSYS Workbench, the StartPage displays what options/modules are available to the user:

Launch a new BladeModeler SessionSelect file type to load existing files

Change default settings

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Training Manual

… Options Page … Options Page

• Before entering a Workbench module, the current and default options may be selected through the “Options …” button• This is useful for setting the default working units, modifying the graphics

style etc.• Preferences for all Workbench modules can be controlled through this

dialog box

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Training Manual

The ANSYS Project PageThe ANSYS Project Page

• The project page lists all files associated with the current project• The menu on the left is context-sensitive. Depending on the file

selected, options available will differ

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Training Manual

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• Vista CCD/CPD


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Training Manual

BladeModelerBladeModeler

• BladeModeler consists of three components:– BladeGen

• Blade Design

– DesignModeler• CAD tool to add additional features to blade• Fillets, blade trimming, shroud covers• Generation of fluid volume• Creation of scrolls, housings, volutes, etc.

– BladeEditor• DesignModeler add-on that provides seamless

geometry connection between BladeGen and DesignModeler

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Training Manual

What is BladeModeler?What is BladeModeler?

WORKBENCH

7 0

0.0 2 N

0 33

1.000000 0.000000 -5.000000

0.000000

1.000000 0.000000 -3.000000

0.100000

1.000204 0.077093 -2.814457

0.100000

1.001623 0.154129 -2.628919

0.100000

User IO

7 0

0.0 2 N

0 33

1.000000 0.000000 -5.000000

0.000000

1.000000 0.000000 -3.000000

0.100000

1.000204 0.077093 -2.814457

0.100000

1.001623 0.154129 -2.628919

0.100000

User IO

BladeGen DesignModelerExternal CAD

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Training Manual

BladeGen DesignModeler

What is BladeGen?What is BladeGen?

• A blade geometry creation tool

• Define blade type• Initial blade geometry

setup• Set tip gap,

shrouded/unshrouded• Report generation• Geometry modification

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Training Manual

OutlineOutline


• Vista CCD/CPD


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Training Manual

Vista CCD/CPDVista CCD/CPD

• CCD – Centrifugal Compressor Design• CPD – Centrifugal Pump Design– These are initial sizing tools useful for compressor

and pump design– Lectures 6 and 7 cover the details of CCD/CPD

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Training Manual

Vista CCD: Duty and Aerodynamic DataVista CCD: Duty and Aerodynamic Data

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Vista CPD: Pump duty and fluiddynamic dataVista CPD: Pump duty and fluiddynamic data

• Note option to specify the Head Coefficient, 2gH / U22

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Training Manual


What is DesignModeler?What is DesignModeler?

• A CAD-like modeler with analysis modeling goals:

– Performs unique geometry modification capabilities for simulation:

• Feature Simplification• Enclosure Operation• Fill Operation• Spot Welds• Split Surfaces• Surface Model Extraction• Planar Body Extraction• Beam Modeling

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What is DesignModeler?What is DesignModeler?

Revolved trim

Blade fillets

Shroud cover

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What is BladeEditor?What is BladeEditor?

BladeGen

DesignModeler

BladeEditor

• An Add-in to DesignModeler• Provides geometry connection

between BladeGen and DesignModeler

• Allows for easy editing of blade geometry from Blade Gen

• Allows for the import of multiple BladeGen models into one DesignModeler session

• Components from another CAD source can be imported and combined with blade geometry (ie A volute)

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Training Manual

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• Vista CCD/CPD


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Training Manual

TurboGridTurboGrid

High quality

Hex mesh

Highly automated

Reliable

Repeatable

High resolution b.l.

Courtesy PCA Eng.

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Training Manual

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• Vista CCD/CPD


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Training Manual

TurboSystem Assisted WorkflowTurboSystem Assisted Workflow

• The ANSYS TurboSystem is a new feature in ANSYS 11.0

• The assisted workflow is a set of three new project page tasks that automate the process of setting up and running a single blade analysis, including meshing, solving, and report generation

• This functionality is an alternative to the BladeGenPlus analysis capability (Legacy product)

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Training Manual

TurboSystem TasksTurboSystem Tasks

• New BladeGen model – Starts BladeGen

• New blade mesh – Imports selected BladeGen model into DM and then creates an unstructured mesh using CFX-Mesh

• New blade CFD simulation – Starts CFX-Pre in Turbo Mode with selected mesh

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TS: New blade meshTS: New blade mesh

• Solid model creation is automatic

• Meshing is automatic• Named selections

created for hub, shroud, etc.

• Periodic interface specified

• Inflation created on hub, shroud and blade

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Training Manual

TS: Mesh sizeTS: Mesh size

• Mesh parameters based on cmdb template (BladeModeler/BladeEditor/etc/ template.cmdb)

• Mesh size can be adjusted by changing the Mesh Scale Factor (MSF) in CFX-Mesh

• Default MSF is 0.6• Larger meshes produced for tall

thin axial blades than for radial blades

• CFX-Mesh MSF preference has no effect on template MSF, only on new mesh sessions

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TS: Mesh TipsTS: Mesh Tips

• CFX-Mesh is fairly robust with the default template settings, but can fail for usual reasons: edit in CFX-Mesh to diagnose and fix the problem

• Mesh is relatively coarse, but finer than typical meshes produced in BladeGenPlus (No inflation on hub/shroud in BG+)

• May need to add mesh controls to resolve details, e.g. the wake region downstream of the blade

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Training Manual

TS: New blade CFD simulationTS: New blade CFD simulation

• What is new in ANSYS Turbo Pre 11.0?– Minor changes made

to CFX-Pre Turbo Mode:• “Machine Type”

specified in Basic Settings

• Slight changes to Component Definition

– Turbo CCL data now passed to CFX-Post for turbo initialization and report creation

– Must write def file from Turbo Mode to get full benefit of the Turbo CCL data, otherwise only subset of information is passed

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Training Manual

TS: Solver ManagerTS: Solver Manager

• Compression/expansion efficiency variables written to res file by default for compressible fluids when using Turbo Mode; the global efficiency values can be monitored in Solver Manager

• When simulation is complete, Solver Manager now asks user whether to load the new solution in CFX-Post

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Training Manual

TS: Turbo ReportsTS: Turbo Reports

• Turbo Report Templates for typical single bladerow components

• Reports can be used for multi-bladerow analyses by loading components individually

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Training Manual

TS: Turbo ReportsTS: Turbo Reports

• Reports are similar in content to BG+ reports:– Mesh summary– Physics summary– Computed results– 1D charts for blade

loading and averaged quantities

– 2D/3D plots

• Report templates can be modified by the user (CFX\etc\PostReports)

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Training Manual

TS: Blade Design IterationTS: Blade Design Iteration

• User wants to go back to BladeGen and update design

• Manual steps for re-analysis:– Update geometry in Meshing Application

and regenerate mesh– Reload the mesh file in CFX-Pre and

rewrite def file– Rerun solver– Load new res file with existing report (state

file) or reload report template

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Training Manual

TS: Improvements from BG+TS: Improvements from BG+

• Better control over meshing• Interactive 3D graphics for easier

visualization of model, results, etc.• All the benefits of the latest CFX software

(Pre/Solve/Post), e.g. real gas, turbulence models, parallel solver

• Easier to move from simple blade analysis to full CFX functionality, e.g. multi-bladerow, advanced physics, FSI

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Training Manual

Key PointKey Point

• BladeModeler is a blade geometry creation product that consists of three components:– BladeGen – Blade creation and editing tool– DesignModeler – Workbench CAD solid

modeler– BladeEditor – Add-In to DesignModeler that

can import and convert BladeGen geometry into a solid model

• BladeModeler is a useful tool for generating blade geometry for a CFD or FEA analysis

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