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ICEM CFD in Aerospace Industry

ICEM CFD in Aerospace Industry. Aerospace. This is a snap shot of aerospace companies leveraging ICEM CFD technologies to stay ahead of the curve. .

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ICEM CFD in Aerospace Industry

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  1. ICEM CFD in Aerospace Industry

  2. Aerospace This is a snap shot of aerospace companies leveraging ICEM CFD technologies to stay ahead of the curve. ICEM CFD Hexa proved to be an excellent structured mesh generation environment, and is currently the workhorse for mesh generation at Airbus. The excellent partnership spirit developed over years with ICEM CFD allowed the product to keep matching our industrial requirements . . . . AIRBUS

  3. Airbus: HEX Meshing

  4. Aerospace HEX Meshing – Nacelles

  5. Aerospace HEX Meshing – Nacelles

  6. Benefits to Airbus • An excellent link with our 3D models. • ICEM CFD allows the generated mesh to exactly match the CAD surface. This guarantees that we're exactly modeling the shape we designed. • Excellent interactive meshing capabilities. • A good integration within our industrial environment that resulted in enhanced productivity.

  7. Additional Aerospace Examples: TET Meshing Ventilation Zone of Jet Engine meshed with ICEM CFD TETRA. Models range from 1 to 15 million tets

  8. A Closer Look

  9. Aerospace TET Meshing X31 X31 – 8 million TETS / 5 million PRISM Meshed in 2 days

  10. ICEM CFD in Automotive

  11. Who uses ICEM CFD in Automotive? The ICEM CFD product was born from a project funded by Ford in 1989

  12. Formula 1: 10 companies total 7 of these use ICEM CFD Software 2 are currently evaluating it 1 doesn’t do CFD

  13. Why is ICEM CFD Used So Much in F1? • Fast turn around time is key • Direct CAD interfaces; no CAD ‘Clean-up’ • Mesh routines are fast • Scripting of ICEM CFD TETRA and ICEM CFD HEXA

  14. Formula 1 – HEX Scripting 2D and 3D wing profiles Automatic wing topology in ICEM CFD HEXA: Includes boundary layer O-mesh

  15. Formula 1 – TET PRISM Scripting Custom script developed to mesh front wing end plates in TETRA and PRISM. 100% automatic from CATIA model file. Total time for each model < 15 minutes as compared to 1 day if meshed by a user

  16. Formula 1 – Components Generation time < 2 hrs HEX & TET hybrid mesh of the Air box

  17. Meshing STL for Reverse Eng’ng • Two models provided as STL • Trailing arm • Knuckle • Data is characterized by • large number of triangles • poor quality • holes • “noisy” data near edges • includes unwanted features

  18. Trailing Arm • Segment surface model 10 min • Add curves at component edge 15 min • Eliminate unwanted features 10 min • Close holes 5 min • Mesh one side 10 min • Edit mesh 30 min • Offset mesh to component midplane 5 min • Output 5 min Total: 1.5 hr

  19. Alternative Meshing Approach • Same geometry methodology • Use “blocking approach” in ICEM Hexa • Total time required is ~the same

  20. Convert Structured Mesh to NURBS • If export to CAD is desired, structured quad mesh can be converted to NURBS • Mesh faces become surfaces • Nodes become surface control points • Suitable for export to CAD

  21. Steering Knuckle – Solid Meshing Before: ~ 1 million triangles and full of holes! After: 94k solid tet elements

  22. Time Required • Import geometry 5 min • Create additional geometry 10 min • Define mesh parameters 5 min • Generate shell mesh 15 min (CPU) • Close holes 15 min • Generate volume mesh 5 min (CPU) • Edit mesh 10 min • Output 5 min Total 1.2 hrs

  23. ICEM CFD in Civil Infrastructure

  24. Civil Infrastructure • Core tools are for this sector: • TETRA / PRISM : Complex structures • HEXA : Simpler structures • AUTOHEXA : Traditional structures Using hybrid techniques lets you combine all of the above

  25. Civil Engineering - Autohexa Made with primitives and meshed with HEX cells 100% automatically

  26. Civil Engineering – Zlote Centre • CAD model was non-existent. • Just line drawing – Built with ICEM CAD tools.

  27. Civil Engineering – Zlote Centre • Project Stats • 100 inlets • 3 floors • 2.5 million cells • 2 days from CAD

  28. Civil Engineering – Church • Under floor heating via vents • Glass Walls

  29. Civil Engineering – Church

  30. ICEM CFD in Biomedical

  31. Biomedical Example – Scan Data Input was surfacesfrom Point Cloud Data + New surface on brain New surface on skull Mesh between brain surfaceand skull surface for CFD calculation

  32. Wayne State University • Studying automotive injury mechanisms • “Noisy” STL geometry from scan • High-quality all-Hex mesh required

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