gambit-23-lecture-06a--volumemeshing(編輯修改稿)
2025-02-24 22:55 本頁面
【文章內容簡介】 roductory GAMBIT Training GAMBIT June 2023 Troubleshooting the Cooper Tool Problem: A brick is split as shown. The Cooper tool fails. Why? What can be done to generate a volume mesh? A B C 615 169。 2023 Fluent Inc. Introductory GAMBIT Training GAMBIT June 2023 Troubleshooting the Cooper Tool Solution: Cooper tool fails because no logical axis exists. If faces A and B are source faces, then face C must be either mappable or submapple. Face C contains a void and can only be paved. Split the volume with a face as shown. Use Face A1 as one source face for volume 1 and use face C2 as one source face for Volume 2. A1 Volume 1 Volume 2 C1 A B C 616 169。 2023 Fluent Inc. Introductory GAMBIT Training GAMBIT June 2023 Troubleshooting the Cooper Tool Problem: The Cooper tool fails because the interior loops on source faces A and B either overlap or are close. A B Interior loops 617 169。 2023 Fluent Inc. Introductory GAMBIT Training GAMBIT June 2023 Troubleshooting the Cooper Tool A B Interior loops A1 A2 Solution: Split source face A as shown. Neither face A1 nor A2 contain closed interior loops. 618 169。 2023 Fluent Inc. Introductory GAMBIT Training GAMBIT June 2023 Example: manually change the vertex types 3 Source Faces How to Make a Volume Cooperable ? Three options to use the Cooper Tool: ? Manually change vertex types on the side faces to make them mappable or submappable. ? Manually select the source faces. GAMBIT will attempt to make side faces mappable or submappable. ? Enforce the map or submap scheme on the side faces. S E S E C C E E E E E E 619 169。 2023 Fluent Inc. Introductory GAMBIT Training GAMBIT June 2023 Tet/Hybrid Meshing ? Tetrahedral/Hybrid Mesh Scheme TGrid ? Most volumes can be meshed without deposition, regardless of plexity. ? Use boundary layers to create hybrid grids (prism layers on boundaries to capture important viscous effects). ? Use on volumes that are adjacent to volumes that have been meshed with hex elements will automatically result in a transition layer of pyramids. 1 Hex Cooper 2 Tet: TGrid Pyramid layer 3 Hex/Wedge Cooper 620 169。 2023 Fluent Inc. Introductory GAMBIT Training GAMBIT June 2023 Tet/Hybrid Meshing – Troubleshooting ? Quality of the tetrahedral mesh is highly dependent on the quality of the
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