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How did YOU solve your skewness problem?

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Old   March 23, 2017, 23:54
Default How did YOU solve your skewness problem?
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rjw
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Richard
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Been getting the "skewness exceeds 0.98" error for my Fluent meshing pretty much regardless of what I do. Just curious to see what major steps I should be taking to troubleshoot this problem.
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Old   March 27, 2017, 01:57
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If you're using ANSYS Meshing module, there are two solutions I would look into:

1- Try to increase the "Min size" of the mesh, which will lead to less-accurate mesh (in terms of matching with geometry), but it will decrease the skewness in edges and ...

2- Try to decrease the "Max face size" and "Max Size". It will increase the overall number of the cells! So, less skewness on edges1
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Old   March 27, 2017, 08:32
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Lucky Tran
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Coarser grids do great things for reducing skewness.

Uniform grids are also helpful (make smallest cells bigger, and biggest cells smaller).

If you're using an automated mesher you don't have control over the mesh topology. But if you're using ICEM for example, you can change the block structure.
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