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ICEM CFD Meshes for Drag Prediction Workshop

ICEM CFD Meshes for Drag Prediction Workshop. Structured Multiblock Meshes for WB & WBNP configuration Unstructured Tetra + Prism Meshes Three unstructured meshes for each configuration based on size of the mesh

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ICEM CFD Meshes for Drag Prediction Workshop

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  1. ICEM CFDMeshes for Drag Prediction Workshop • Structured Multiblock Meshes for WB & WBNP configuration • Unstructured Tetra + Prism Meshes • Three unstructured meshes for each configuration based on size of the mesh • Prisms & Pyramids can be readily converted into tetras for solvers that can not handle prism & pyramid elements

  2. Files • ICEM CFD files, Plot3D files and CGNS files are available • CGNS files are written by ICEM CFD CGNS translator using CGNS library version 2.1 • Plot3D files are written with Double precision, Formatted, no IBLANK array with ‘Whole’ data layout. • Contact senthan@icemcfd.com for different format of the mesh • Wing-body configuration mesh files contains “wb” in the name, Wing-Body-Nacelle-Pylon configuration mesh files contains “wbnp”

  3. Wing-BodyHex Mesh • C – Topology around the wing • Fine, Medium and Coarse grids are available • 4 Levels of Multigrid (level 0, 1, 2 & 3) – Coarse mesh has only 3 levels (level 0, 1 & 2) of Multigrid • Viscous Grid with Near wall Spacing = 0.001

  4. Wing-BodyHex Mesh C – Topology for wing Fine Mesh Medium Mesh • 5.5 Million Hexas • 10 Million Hexas Coarse Mesh • 3.3 Million Hexas

  5. Wing-Body-Nacelle-PylonHex Mesh • C – Topology for Wing-Nacelle-Pylon region. • 4 Levels of Multigrid (level 0, 1, 2 & 3) for fine and medium meshes and 3 levels of multigrid (level 0, 1 & 2) for coarse configuration • Minimum number of blocks • Viscous Grid With Near Wall Spacing = 0.001

  6. Wing-Body-Nacelle-PylonC – Topology for Nacelle & Wing Fine Mesh • 13.7 Million Nodes (13.5M Hexas) Coarse Mesh • 4.6 Million Nodes (4.5M Hexas) Medium Mesh • 8.5 Million Nodes (8.3M Hexas)

  7. Wing-BodyTetra Prism Mesh - Coarse • Total Number of Tetras – 1.2 million Prisms – 0.8 million Nodes – .62 million • 10 Layers of Prisms • First prism layer height from surface = 0.05mm • File name aiaa_wb_prism_2.0m*

  8. Wing-BodyTetra Prism Mesh - Medium • Total Number of Tetras – 1.5 million Prisms – 3.8 million Nodes – 2.2 million • 35 Layers of Prisms • First prism layer height from surface = 0.001mm • File name aiaa_wb_prism_5.2m*

  9. Wing-BodyTetra Prism Mesh - Fine • Total Number of Tetras – 4.2 million Prisms – 9.75 million Nodes – 5.7 million • 40 Layers of Prisms • First prism layer height from surface = 0.001mm • File name aiaa_wb_14.0m*

  10. Wing-BodyTetra Prism Mesh With Elongated Triangles at Leading and Trailing Edges • Total Number of Tetras –million Prisms –million Nodes –million • 35 Layers of Prisms • First prism layer height from surface = 0.001mm • File name aiaa_wbe*

  11. Wing-Body-Nacelle-PylonTetra Prism Mesh - coarse • Total Number of Tetras – 1.25 million Prisms – 1.7 million Nodes – 1.1 million • 10 Layers of Prisms • First prism layer height from surface = 0.05mm • File name aiaa_wbnp_3.0m*

  12. Wing-Body-Nacelle-PylonTetra Prism Mesh - Medium • Total Number of Tetras – 0.8 million Prisms – 4.25 million Nodes – 2.3 million • 35 Layers of Prisms • First prism layer height from surface = 0.001 mm • File name aiaa_wbnp_5.om*

  13. Wing-Body-Nacelle-PylonTetra Prism Mesh - Fine • Total Number of Tetras – 3.0 million Prisms – 10.6 million Nodes – 5.9 million • 39 Layers of Prisms • First prism layer height from surface = 0.001 mm • File name aiaa_wbnp_14.0m*

  14. Wing-Body-Nacelle-PylonTetra Prism Mesh With Elongated Triangles at Leading and Trailing Edges • Total Number of Tetras – 2.5 million Prisms – 5.5 million Nodes – 3 million • 39 Layers of Prisms • First prism layer height from surface = 0.001 mm • File name aiaa_wbnpe*

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