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13-14 Apr 2010
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Unstructured Mesh Generation for CFD with Pointwise

Pointwise's Tetrahedral Meshing for CFD

Unstructured grids consisting of triangles and tetrahedra are generated by a modified Delaunay method. Like structured grids, unstructured surface grids can span multiple entities in the geometry model and adhere to the CAD model automatically. The unstructured solver may be re-applied at any time, giving you control over minimum and maximum cell size, maximum cell-to-cell turning angle, maximum surface deviation, and boundary decay.

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These attributes may also be set in advance to result in a good grid automatically. Edge swapping and LaPlace smoothing may also further improve unstructured surface grids.

High aspect ratio triangular surface meshes can be created by diagonalizing an existing quad grid.