Low determinant in OpenFOAM
Hello,
Lately I seem to be having problems with the determinant of my cells. Right now I am working on a tetra-only mesh, which I then export for Fluent v6 and then convert into OpenFOAM format. According to Ansys ICEM, the quality of my mesh is sufficient (At least 0.15 on the quality criterium), however when I do a checkMesh -allTopology -allGeometry I get a failed mesh check due to a high number of low determinant cells. Returning to Ansys and checking for the determinant criterion, I get just 1 bar for max quality determinants, which obviously is not the case... When checking for Quality: Min = 0.190245, max = 0.999119, mean = 0.693216455497 673866 elements with the "Quality" diagnostic When checking for Determinant: Min = 1, max = 1, mean = 1.0 603610 elements with the "Determinant" diagnostic 70256 elements for which this diagnostic is undefined Am I doing something wrong? Is this a bug? Or does it have to do with the conversion from Fluent mesh to OpenFOAM? Advice is really appreciated, as I obviously cannot improve my meshes if I do not know what is wrong :) Kind regards. Code:
Checking geometry... |
Hello,
Did you manage to fix the under-determinded cells? Im experiencing the same issue for my meshes. Kind regards, George |
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