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Forum: Main CFD Forum

May 31, 2011, 10:08

Replies: 8

numerical diffusion in tetrahedral grids

Views: 2,618

Posted By baserinia

You're welcome! I don't have much experience with...

You're welcome! I don't have much experience with Gambit or Tgrid, but any package which alloys you defining and editing blocks should work. As for the butterfly grid, you can find some info here...

Forum: Main CFD Forum

May 30, 2011, 10:23

Replies: 8

numerical diffusion in tetrahedral grids

Views: 2,618

Posted By baserinia

Lilly, for a 2D bifurcation, your meshing...

Lilly, for a 2D bifurcation, your meshing strategy should look like the one in the picture. You need to define 3 blocks and then mesh each block with quads. In 3D, the general idea is the same....

Forum: Main CFD Forum

May 29, 2011, 17:57

Replies: 8

numerical diffusion in tetrahedral grids

Views: 2,618

Posted By baserinia

As Sail mentioned, the grid must be aligned with...

As Sail mentioned, the grid must be aligned with the flow velocity. In my experience, a tetrahedral grid introduces an enormous amount of numerical diffusion. What is the geometry that you are...

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