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-   -   [ANSYS Meshing] Need help in fixing drop in mesh quality due to creation of stairstep mesh (https://www.cfd-online.com/Forums/ansys-meshing/220264-need-help-fixing-drop-mesh-quality-due-creation-stairstep-mesh.html)

Hitesh12 September 1, 2019 02:41

Need help in fixing drop in mesh quality due to creation of stairstep mesh
 
https://i.imgur.com/pjsInDa.png


After adding inflation I'm getting this error - "Inflation created stairstep mesh at some locations." and the mesh quality is decreasing.
What can I do here to improve the mesh quality? I am tinkering with gap factor and maximum angle (lowering their values) and it helps but only to a certain degree.

Gweher September 1, 2019 09:56

Hi Hitesh,

You have two options. Either play around with the inflation options (first layer height, growth rate, max height over base, etc...) or you can also split your geometry in design modeller / spaceclaim > form new part / component, then assign a multizone method to the triangular shaped bodies with an inflation.

Have fun ;)

Hitesh12 September 3, 2019 04:58

Quote:

Originally Posted by Gweher (Post 743560)
Hi Hitesh,

You have two options. Either play around with the inflation options (first layer height, growth rate, max height over base, etc...) or you can also split your geometry in design modeller / spaceclaim > form new part / component, then assign a multizone method to the triangular shaped bodies with an inflation.

Have fun ;)


So rest of the body tetrahedral but triangles as multizone? Wouldn't this lead to issues because of tet to hex transition. I have tried this before and the results were not great


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