blockMesh & negative volume error
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Hi Dear foamers,
I created the mesh by using blockMesh and after checkMesh I had a negative volume error.. Can anyone explain how can I solve this problem ? Code:
/*---------------------------------------------------------------------------*\ I appreciate your help. Thanks and best regards. Sasan. |
it returns to the ordering of block, you can see negative volume ;) as you create your mesh by blockMesh, it shows negative volume as warnings
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Hi Dr.sam,
thanks for your reply. Can you say how can I overcome this error? I should modify the vertices? Or I should change the ordering of points in construction of blocks?? I appreciate your help. Thanks and best regards, Sasan |
Hi Dear sasan
in some simple cases when i see this warning in blockMesh i change the order of vertices, but maybe there are other ways to solve it |
Hello Mr. Nima,
I imported my mesh from Gmsh (http://www.cfd-online.com/Forums/ope...ecks-fail.html) still I am facing the problem of Zero or negative volume. Can you please tell me how to solve it? Thank you |
it is due to wrong face orientation in the grid. so you should change it. consider either clockwise or counter clock wise for the faces.
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