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-   -   CFX highly skewness after remeshing (http://www.cfd-online.com/Forums/cfx/112967-cfx-highly-skewness-after-remeshing.html)

MUMMED February 8, 2013 16:08

CFX highly skewness after remeshing
 
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hello friends
I have problem for remeshing
I have done edr tutorial in this forum but after remeshing an error occured new mesh was not fine and negative volume have been created in remeshin process.
Does any anybody know about it?
I've got same problem with finer mesh!

keeper February 11, 2013 09:17

which inflation algorithm did you use?

did you clear generated data before?

MUMMED February 11, 2013 15:05

Quote:

Originally Posted by keeper (Post 407127)
which inflation algorithm did you use?

did you clear generated data before?

Dear keeper
I'm sorry I don't know what you really mean. i am not so expert
but i used unstructured mesh with octree type
i ran script control befor defining global mesh setup(global mesh size) and seved that after computing mesh.
i added curves ,points and surface to proper BC.(actually to a proper part)
i start with surface meshing and then computing.Is this problem?

singer1812 February 12, 2013 10:58

You are using ICEM?

Did you check the geom it built up from the old mesh to see if it it correct? Make sure lines and points are generated correctly and not just surfaces. You might need to script in a geom Build Topology after generating geom from old mesh to correct this.

If geom is all ok then try decreasing the Edge Criterion for the Octree Volume mesher.

MUMMED February 12, 2013 13:21

Quote:

Originally Posted by singer1812 (Post 407436)
You are using ICEM?

Did you check the geom it built up from the old mesh to see if it it correct? Make sure lines and points are generated correctly and not just surfaces. You might need to script in a geom Build Topology after generating geom from old mesh to correct this.

If geom is all ok then try decreasing the Edge Criterion for the Octree Volume mesher.

dear singer
my first problem was that you mentioned
i set ICEM CFD Scale factor but i don't know why the geometry scale is not aproppriate after remeshing?


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