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Similaire à CFD and more with Acusolve and HyperWorks
Similaire à CFD and more with Acusolve and HyperWorks (20)
CFD and more with Acusolve and HyperWorks
- 1. CFD and more with Acusolve and HyperWorks
Innovation Intelligence®
Dr. Marc Ratzel, Program Manager CFD
David Corson, Program Manager AcuSolve
- 2. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Agenda
• Overview, CFD solutions in HyperWorks
• Pre-processors / Solvers / Post-processors included in the HW suite
• HyperMesh/HyperView for CFD applications
• Grid generation in HyperMesh
• Basic AcuSolve case setup in HM
• Post-processing in HyperView
• Outlook to next update release SA-130
• Multi physics in AcuSolve
• Overview of Multi physics capabilities
• AcuSolve-Radioss coupling
• Advanced model setup using AcuConsole
• Efficient CFD analysis of a race car using Altair tools
• HyperMesh, AcuConsole / AcuSolve / AcuFieldView
- 3. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
CFD solutions in HyperWorks
Radioss Radioss
(linear, static) (non-linear, implicit, dynamic)
Loads (T,p,
…) DC-FSI
P-FSI
(eigenmodes) (co-simulation)
AcuConsole AcuSolve AcuFieldView
HyperMesh Radioss HyperView
(CFD, FSI)
Pre-processor Solver Post-processor
- 4. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Pre-Processing
• AcuConsole
• Dedicated pre-processor for AcuSolve
• Fast and robust CFD meshing (e.g. 90Mio tetras external automotive 80min)
• HyperMesh
• Solver neutral CFD grid generator
• Powerful geometry cleanup/generation tools
• One pre-processor for structural and CFD analysis
HyperMesh AcuConsole
- 5. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Solver
• Radioss CFD/FSI
• Explicit multi-physics solver
• Coupled solver (structure + fluid)
• Suited for compressible flow
• AcuSolve
• Implicit multi-purpose CFD solver
• Finite element based
• Strong FSI capabilities (P-FSI, DC-FSI)
Courtesy of HTT
AcuSolve Radioss
- 6. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Post-Processing
• AcuFieldView
• Dedicated CFD post-processor (OEM version of FieldView, Intelligent Light)
• Supports only AcuSolve results
• Client-server architecture, 8 way parallel
• HyperView
• Solver neutral CFD post-processor
• Showing structural and CFD results
pressure Top. Optim. streamlines
in one framework
eigenmodes
HyperView
AcuFieldView
- 7. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Agenda
1. Access to CFD meshing tools in HyperMesh
• CFD user profile in HyperMesh
• CFD tetramesh panel
2. Demos
• Basic meshing of an exhaust system
• Considering variable boundary layer thickness
• Improving mesh quality
• Mixed tetra-hexa meshing
3. Upcoming release SA-130, new meshing features
4. Basic AcuSolve case setup in HyperMesh
5. Post-processing of CFD results in HyperView
- 8. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
CFD user profile
• New GUI design for CFD applications
• Quick access to CFD features
• Aligned to CFD workflow
- 9. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
CFD tetra mesh panel (access)
Drop down Toolbar
Panel
- 10. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
CFD tetra mesh (four sub panels)
Boundary selection
• select boundaries
• define regions with BL
Boundary Layer settings
• 1st cell height
• # of layers
Tetramesh settings
• growth rate
• elem. criteria threshold
Refinement box
• local tetra refinement
• adapt size/location
- 11. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demo (variable BL thickness / mixed hexa-tetra mesh)
HyperWorks Desktop: one framework for pre + post
- 12. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
New CFD features, next release (SA-130)
• Surface remeshing if included in refinement box
BL surface elements Remeshed surface
included with BL
Refinement box (tetra
mesh refinement)
- 13. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demo (refinement box, surface remeshing)
- 14. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
New CFD features, next release (SA-130)
• Define solid and fluid volume (e.g. electronic cooling)
Fluid (with BL)
Solid (no BL)
BL only in
fluid domain
Separate components
for each volume
- 15. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
New CFD features, next release (SA-130)
• Simple boundary selection option
• Reduces the boundary selection to a minimum
Select all bounding regions
Select inflow/outflow
Simple selection
No BL on interfaces
- 16. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demo (simple selection, fluid/solid)
- 17. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Basic AcuSolve case setup in HyperMesh
• Currently only basic setup features are supported in HyperMesh
• Further development planned for future
Physics/numerics
Comps, BC
Materials
- 18. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demo (AcuSolve setup in HyperMesh / HyperView for CFD)
- 19. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
AcuSolve case setup in HyperMesh
Property sheet Inflow BC
Property sheet Material def.
- 20. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
AcuSolve case setup in HyperMesh
AcuSolve Job Launcher AcuProbe
- 21. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Alternative: HyperMesh à AcuConsole
• Launch AcuConsole from HyperMesh and transfer model
• Perform case setup in AcuConsole
HyperMesh
AcuConsole
- 22. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demo (Morphing, new run)
- 23. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperStudy / Morphing for CFD optimization
Challenges: inflow
• Increase manifold efficiency
Solution:
• Create shape variables using HyperMorph
• Run optimization to maximize flow uniformity
while meeting the constraints on back
pressure Cross section
for uniformity
Results :
• 7% increase in flow uniformity
• 2 days for design optimization outflow
initial design Velocity contour optimized design Velocity contour
Presented at EHTC 2009 by Bosal
- 24. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Summary
CFD meshing (HyperMesh)
• Wide range of geometry cleanup/generation functionalities
• Solver neutral (AcuSolve, CFD++, CFX,…)
• High quality volume grids (hybrid, hex-core, hex-only,..)
Next release SA 130
• Various new CFD meshing features
Morphing for CFD
• Quick design changes without re-meshing
CFD post-processing (HyperView)
• Data exchange via Ensight format
• Streamlines, contour plotting, iso-surfaces,…
AcuSolve
• Basic AcuSolve case setup in HyperMesh
- 25. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Agenda
• Overview, CFD solutions in HyperWorks
• Pre-processors / Solvers / Post-processors included in the HW suite
• HyperMesh/HyperView for CFD applications
• Grid generation in HyperMesh
• Basic AcuSolve case setup in HM
• Post-processing in HyperView
• Outlook to next update release SA-130
• Multi physics in AcuSolve
• Overview of Multi physics capabilities
• AcuSolve-Radioss coupling
• Advanced model setup using AcuConsole
• Efficient CFD analysis of a race car using Altair tools
• HyperMesh, AcuConsole / AcuSolve / AcuFieldView
- 27. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Race Car – Overview
• What you will learn
• How to use HyperMesh and AcuConsole together for model set-
up
• Surface meshing in HyperMesh
• Volume meshing in AcuConsole
• AcuFieldView post-processing
• Basic operation
• Automation using restart files
• Client-server operation
• Client-server parallel operation
- 28. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Race Car – AcuFieldView
AcuFieldView Overview Many New Features
• OEM version of FieldView based on FV 13 • Redesigned, unified Graphical User
• Included with AcuSolve V1.8b product Interface
suite • Sweep caching of transient data
• Functions only with AcuSolve generated • Improved graphics performance
results data • New file browsers which recall previous
locations
- 29. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Race Car – AcuFieldView
Fully featured
• Supports all features of
FieldView AcuSolve
• No model size limits
• No limits on visualization Database
object count
Customize/Automate FV-UNS
• Full support of FVX Direct
scripting/automation format read
• Runs in true batch mode
• Integrated with AcuReport
Data Access
• Direct database read
• Conversion to FV-UNS format
• Local client/local server
• Local client/remote server
• Up to 8 processor parallel
operation
- 30. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Race Car – Finished Product
- 32. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
FSI Demo - Overview
• What you will learn
• Multiphysics capabilities of AcuSolve
• P-FSI vs. DC-FSI
• AcuSolve modeling process
• Interoperability of AcuSolve with RADIOSS
• Basic CAD associativity within AcuConsole
• How to set up multiphysics simulations using AcuConsole
- 33. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
FSI Demo – Supported Physics
• Multiphysics
• Rigid Body Dynamics Coupling
• 6-DOF rigid body solver
• No multi body dynamics
• Practical Fluid/Structure Interaction (P-FSI)
• Structural displacement computed by AcuSolve
• Based on modal superposition
• Limited to linear structural displacements
• Supported with RADIOSS, Abaqus, Nastran
• Directly Coupled Fluid/Structure Interaction (DC-FSI)
• Codes communicate at run time
• Loads/displacements exchanged
• Supported with RADIOSS, Abaqus, MD-Nastran
- 34. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
FSI Demo – Problem Description
• Road sign flutter under high wind
• Geometry constructed in SolidWorks
• Structural model(s) built using HyperMesh
• CFD model built using AcuConsole
• Practical Fluid/Structure Interaction (P-FSI) and Directly Coupled Fluid/
Structure Interaction (DC-FSI) technology used
- 35. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
FSI Demo – Results
• Displacement from P-FSI case
- 36. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
FSI Demo - Results
• Finished product