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[Gmsh] Issues with mesh tolerances after using gmshToFoam |
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April 21, 2010, 11:00 |
Issues with mesh tolerances after using gmshToFoam
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#1 |
Senior Member
Anonymous
Join Date: Mar 2009
Posts: 110
Rep Power: 17 |
I've recently being trying to test out some meshes from gmsh in OpenFOAM. However, I've encountered some issues with meshes with very fine near wall layers (10-5m to 10-6m). Infact, I can only get the meshes to pass checkMesh if the near wall first cell height is no less than 5x10-4m, otherwise it complains of boundary openness and nonClosedCells.
Now, this sounded awfully like an issue with single- or double-precision, but I checked and the version of foam I'm using is compiled in double-precision (that is the $WM_COMPILER_PRECISION=DP and all the binaries and libraries are stored in linux64GccDPOpt folders). Both readPrecision and writePrecision are both set to 16 as well. The gmsh file IS VALID, since I have checked this with a seprate mesh checking tool. So, is there something I'm missing here? Has anyone been able to overcome similar problems? |
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