Hello, I was trying to solve an analysis using SST k-omega model. But when I modified Layer gradation to 1.5 or another value not the default setting on the Boundary Mesh Enhancement dialog, the boundary layer mesh on the inlet and outlet surface disappeared. Why?
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Is this from a ProE model?
As a side note I would not suggest increasing the boundary layer much beyond 1.25. From my testing I find that 1.15 is a decent value to use.
Thanks for your reply.
The model is launched from ProE.
I have tested 1.15, the boundary layer mesh on inlet surface is very strange when refine the mesh, pls see the attachment.
In fact, the problem I cared most is about the boundary layer mesh.
I found that if refine the mesh very fine, the bondary layer mesh on inlet and outlet surface will be likely to disappear. Why?
Another question, when using SST k-omega to solve, the Y+ value is very large more than 300 at boundary layer.
How can I improve this situation?
Thanks very much.
This at times can be an acuracy issue. Try launching in from Pro/e using a tighter (smaller) absolute accuracy on the proe geometry and see if this helps resolve some of the issues.