1. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. Chapter 6 ANSYS CFX 9.0

2. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-2 9.0 New Features Overview CFX Strategy and Roadmap Summary CFX-in-Workbench CFX-Mesh

3. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-3 9.0 New Features CFX Product Strategy Continued development of advanced, best-in- class core technologies –CFX is absolutely major league CFD Part of ANSYS Integrated CAE Strategy –CFX products and technologies integrating into ANSYS Workbench Customer benefits from: –Leading robustness/speed/accuracy for CFD solution –CAE interoperability with other Workbench tools and physics – major differentiator

4. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-4 9.0 New Features CFX Roadmap Summary CFX-5 –CFX-5.7 current major release – Q2 2004 –CFX-5.7.1 – first integration into Workbench –CFX-5.8 – next major release – Q2 2005 CFX-Mesh –CFX-Mesh 8.1 – first integration into Workbench –CFX-Mesh 9.0 – major improvements –CFX-Mesh will continue to be closer integrated into Workbench with each successive release Turbo Products not covered: –CFX-TurboGrid –CFX-BladeGen

5. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-5 9.0 New Features CFX-in-Workbench CFX-Mesh is already in Workbench –Provides integrated CAD/geometry/meshing environment The 3 major modules of CFX-5 – CFX-Pre, Solver, CFX-Post – are now also integrated as Tabs –CFX-5.7.1 is bug-fixed and “GUI harmonized” 5.7 –Full project page support for files and launching –Single install –Shows up as the “Advanced CFD Application” First time for complete, general-purpose CFD solution in one environment –CAD/geometry/meshing/physics/solution/post all together

6. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-6 9.0 New Features CFX-in-Workbench, DesignModeler

7. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-7 9.0 New Features CFX-in-Workbench, DesignModeler

8. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-8 9.0 New Features CFX-in-Workbench, DesignModeler

9. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-9 9.0 New Features CFX-in-Workbench, DesignModeler

10. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-10 9.0 New Features CFX-in-Workbench, DesignModeler

11. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-11 9.0 New Features CFX-in-Workbench Example

12. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-12 9.0 New Features Positioning of CFX-Mesh Incorporated natively into ANSYS Workbench Tuned to produce as optimal as possible meshes for CFX-5 Tightly coupled with DesignModeler For easy-to-use, high-quality CFD mesh generation –Heavily defaulted inputs; very automated sensitivity to geometric detail – few user inputs required –Produces orthogonal and smooth near-wall prism region for boundary layer resolution (Should use ICEM CFD when: –Have very large number of geometric surfaces, or have significantly faulty CAD –Need to do manual mesh editing –Need 3D blocked Hexahedral elements)

13. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-13 9.0 New Features Basics Hybrid mesh approach –Triangular surface mesh Hybrid mesh approach –Triangular surface mesh –Prismatic/Inflated mesh Hybrid mesh approach –Triangular surface mesh –Prismatic/Inflated mesh –Pyramidal intermediate elements Hybrid mesh approach –Triangular surface mesh –Prismatic/Inflated mesh –Pyramidal intermediate elements –Tetrahedral mesh generator

14. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-14 9.0 New Features Hybrid mesh approach

15. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-15 9.0 New Features Inflation marked surfaces

16. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-16 9.0 New Features Initial surface triangulation

17. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-17 9.0 New Features Basic inflation – 5 layers

18. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-18 9.0 New Features Complete hybrid mesh

19. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-19 9.0 New Features New features in CFX-Mesh 9.0 Persistence of mesh setting following geometry changes 2D/Axisymmetric meshing capability Improved prism meshing Beta Virtual Topology capability for faulty CAD; currently uses existing Workbench VT technology Direct CAD import Local parallel meshing capability Body specific meshing Improved mesh control setting

20. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-20 9.0 New Features Persistence – “Updated” geometry

21. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-21 9.0 New Features Mesh settings persist

22. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-22 9.0 New Features 2D meshing capability

23. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-23 9.0 New Features 2D mesh (1 element thick)

24. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-24 9.0 New Features Axisymmetric mesh

25. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-25 9.0 New Features Improved prism meshing Improved normal smoothing Extended inflation layers at unit aspect ratio

26. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-26 9.0 New Features Normal smoothing in 8.1

27. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-27 9.0 New Features Improved normal smoothing in 9.0

28. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-28 9.0 New Features Extended Inflation Layer Thickness

29. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-29 9.0 New Features Direct CAD import CAD Packages include: Autodesk Inventor Solid Edge Solid Works Unigraphics Mechanical Desktop Supports geometry updates i.e. persistent IDs

30. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-30 9.0 New Features Virtual topology – Beta capability Virtual topology modifies the model seen by the UI and mesh algorithms, it does not modify the underlying geometry Virtual face –A virtual face is a combination of faces that will be treated as in individual surface Virtual edge –A virtual edge is a combination of edges that will be treated as in individual surface

31. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-31 9.0 New Features Virtual edge example Short edges cluster mesh and have no relevance to the calculation

32. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-32 9.0 New Features Virtual edge example, with VT Unnecessary clustering is eliminated

33. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-33 9.0 New Features Virtual face example

34. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-34 9.0 New Features Original mesh

35. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-35 9.0 New Features New “Virtual Face” created

36. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-36 9.0 New Features New mesh on virtual face

37. ANSYS, Inc. Proprietary © 2004 ANSYS, Inc. October 1, 2004 Inventory #002156 6-37 9.0 New Features Summary Workbench 9.0 + CFX-Mesh 9.0 + CFX-5.7.1 in Workbench rocks!