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CFD and more with Acusolve and HyperWorks

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CFD and more with Acusolve and HyperWorks

  1. 1. CFD and more with Acusolve and HyperWorksInnovation Intelligence® Dr. Marc Ratzel, Program Manager CFD David Corson, Program Manager AcuSolve
  2. 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. 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. 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. 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. 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. 7. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Agenda1.  Access to CFD meshing tools in HyperMesh •  CFD user profile in HyperMesh •  CFD tetramesh panel2.  Demos •  Basic meshing of an exhaust system •  Considering variable boundary layer thickness •  Improving mesh quality •  Mixed tetra-hexa meshing3.  Upcoming release SA-130, new meshing features4.  Basic AcuSolve case setup in HyperMesh5.  Post-processing of CFD results in HyperView
  8. 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. 9. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.CFD tetra mesh panel (access) Drop down Toolbar Panel
  10. 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. 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. 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 BLRefinement box (tetramesh refinement)
  13. 13. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Demo (refinement box, surface remeshing)
  14. 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. 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. 16. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Demo (simple selection, fluid/solid)
  17. 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. 18. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Demo (AcuSolve setup in HyperMesh / HyperView for CFD)
  19. 19. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. AcuSolve case setup in HyperMeshProperty sheet Inflow BC Property sheet Material def.
  20. 20. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.AcuSolve case setup in HyperMeshAcuSolve Job Launcher AcuProbe
  21. 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. 22. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Demo (Morphing, new run)
  23. 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. 24. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.SummaryCFD 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 featuresMorphing for CFD •  Quick design changes without re-meshingCFD post-processing (HyperView) •  Data exchange via Ensight format •  Streamlines, contour plotting, iso-surfaces,…AcuSolve •  Basic AcuSolve case setup in HyperMesh
  25. 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
  26. 26. HyperMesh/AcuConsole/AcuFieldView Race Car Model Altair Engineering, Inc. June 6, 2012 Innovation Intelligence®
  27. 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. 28. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Race Car – AcuFieldViewAcuFieldView 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. 29. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Race Car – AcuFieldViewFully featured•  Supports all features of FieldView AcuSolve•  No model size limits•  No limits on visualization Database object countCustomize/Automate FV-UNS•  Full support of FVX Direct scripting/automation format read•  Runs in true batch mode•  Integrated with AcuReportData Access•  Direct database read•  Conversion to FV-UNS format•  Local client/local server•  Local client/remote server•  Up to 8 processor parallel operation
  30. 30. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.Race Car – Finished Product
  31. 31. AcuSolve Fluid/Structure InteractionDemo – Yield Sign Flutter Altair Engineering, Inc. June 6, 2012 Innovation Intelligence®
  32. 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. 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. 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. 35. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. FSI Demo – Results•  Displacement from P-FSI case
  36. 36. Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. FSI Demo - Results•  Finished product

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