mesh quality problems: maximum skewness larger than 0.98
Hi there. I am simulating a numerical wave tank with a chamber in it. I build the mesh with DM meshing, but when I run it in FLUENT, there is a warning
maximum cell skewness exceed 0.98 what is the problem that causes the warning? besides this warning, there are two other things, the maximum cell squish is 0.9655 and the maximum aspect ratio is 256.198 does it mean the mesh quality is low? how can I deal with these problems? thanks! |
check your mesh quality, display worst elements, and fix problems.
You need to go back on your mesher for that |
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Mesh skewness is high if you are using unstructured mesh. But generally, it should be less than 0.85 for tetrahedral cells. Even a few cells with high skewness can cause trouble in convergence and may even lead to divergence. |
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