An Integrated System for Shape Optimization in ANSYS Fluent
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FSI Project FSI Project Spin off Spin off University University of Rome Tor Vergata of Rome Tor Vergata [email protected] An Integrated System for Shape Optimization in ANSYS Fluent
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An Integrated System for Shape Optimization in ANSYS Fluent. The Proposed Product. The aim of the product is to allow the study of shape optimization entirely within ANSYS Fluent - PowerPoint PPT Presentation
Transcript of An Integrated System for Shape Optimization in ANSYS Fluent
FSI ProjectFSI ProjectSpin off Spin off
UniversityUniversity of Rome Tor Vergata of Rome Tor Vergata
An Integrated System for Shape Optimization
in ANSYS Fluent
FSI ProjectSpin off
University of Rome Tor [email protected]
The ProposedThe Proposed Product Product
• The aim of the product is to allow the study of shape optimization entirely within ANSYS Fluent
• This new approach takes advantage of the ANSYS Fluent’s CFD technology and overcomes the limits of the mainstream methods, by introducing these functionalities through the implementation of dedicated routine in the CFD ANSYS Fluent code
• A dedicated Graphical User Interface (GUI) has been developed and integrated in ANSYS Fluent
• The product is CFD users oriented and does not require the knowledge of other software packages.
FSI ProjectSpin off
University of Rome Tor [email protected]
Our StrategyOur Strategy
Mainstream strategy New strategy
New: The product allows to perform morphing (mesh could be modified) directly inside the ANSYS Fluent code without rebuilding the geometry and the mesh with an external tool
PRE- PROCESSING
OPTIMIZATIONALGORITHM
MODEL AND BOUNDARY CONDITIONS SETTING
INITIALIZATION
FLUIDYNAMIC PROBLEM SOLUTION
POST - PROCESSING
CAD GEOMETRY
PRE- PROCESSING
OPTIMIZATIONALGORITHM
MODEL AND BOUNDARY CONDITIONS SETTING
INITIALIZATION
POST - PROCESSING
MORPHING
FLUIDYNAMIC PROBLEM SOLUTION
PRE- PROCESSING
CAD GEOMETRY
FSI ProjectSpin off
University of Rome Tor [email protected]
Product Features (1)Product Features (1)
• Morphing directly inside the ANSYS Fluent code without rebuilding the geometry with a different software
• Modification of the original mesh surfaces by:• smooth reshape• rigid movements• rescale
• High quality smoothing of internal mesh (volume)• Mesh characteristics are preserved (element type and
distribution, prism layers, etc)• Mesh consistent approach• Parallel calculation (million of cells are easily managed)
FSI ProjectSpin off
University of Rome Tor [email protected]
Product Features (2)Product Features (2)
• Internal smoothing is achieved by means of a mesh-less approach that is independent from the internal mesh structure handling without problems every type of mesh elements, like tetrahedral, hexahedral, hex-core and polyhedral meshes, prism and boundary layers, mesh with non-conformal interfaces
• Multi-parameter and multi-step problems• Multi-configuration runs are possible as well as parallel
runs for different configurations • Available for steady and transient cases• Pre and Post Processing entirely inside ANSYS Fluent
FSI ProjectSpin off
University of Rome Tor [email protected]
Product StrengthsProduct Strengths
• Moving parts and deforming parts are easily managed by the proposed tool
• Parametric analyses are easily conducted without preparing a new CFD model
Mesh consistency (mesh dependency problems are removed because mesh structure and sizes are preserved)
High efficiency • ANSYS Fluent users oriented • No other software knowledge is required • Projects time and cost reduction and speed up of products
development and optimization
FSI ProjectSpin off
University of Rome Tor [email protected]
Graphical User InterfaceGraphical User Interface
Custom GUI in ANSYS Fluent softwareedited with scheme language
Custom GUI in ANSYS Fluent softwareedited with scheme language
FSI ProjectSpin off
University of Rome Tor [email protected]
ExampleExample of application (1) of application (1)
Problem: Pipe junction.
Test: Rigid movement of part of the model preserving mesh quality and original surfaces shape, polyedral mesh.
Goal: Optimise the position of inlet duct without rebuilding a new model.
FSI ProjectSpin off
University of Rome Tor [email protected]
ExampleExample of application (2) of application (2)
Problem: Flexible pipes branching.
Test: Deformation for polyedrical mesh.
Goal: Minimize the pressure losses at branching point.
FSI ProjectSpin off
University of Rome Tor [email protected]
ExampleExample of application (3) of application (3)
Problem:Hemisferical shell deformations obtained by applying a local load.
Test:Single Point deformation with Morpher UDF.
Goal:Preservation of the mesh quality.
FSI ProjectSpin off
University of Rome Tor [email protected]
ExampleExample of application (4) of application (4)
Problem:Kart bodywork
Test:Points deformation with Morpher UDF
Goal:Aerodynamic optimization
Time to allow mesh deformation:10 min to morph 2.300.000 cells
on AMD Opteron workstation with 8GB of RAM
Morphing action
Cx=0.16
Cx=0.15
FSI ProjectSpin off
University of Rome Tor [email protected]
ContactContact
University of Rome Tor VergataDept. Mechanical Engineering
Via del Politecnico,1 – Rome, ITALY
e-mail addr: [email protected]
Phone n. : +39 06 7259 7124 - Dr. Marco E. Biancolini
