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-   -   Error when creating prismatic layer in ICEM (https://www.cfd-online.com/Forums/cfx/23190-error-when-creating-prismatic-layer-icem.html)

Andrew October 17, 2006 11:31

Error when creating prismatic layer in ICEM
 
I am trying to grow a prismatic boundary layer in ICEM, but consistently get the error "shells 89371 and 105924 not consistently oriented Application is finished Error: Prism mesher failed to create mesh"

I have tried various methods of getting round it (for example only meshing certain surfaces, meshing surfaces one at a time but the error keeps reoccuring whichever surface I try and create the layer from.

If anybody has any pointers as to how I can get the mesh to 'grow' it would be hugely appreciated!

Many thanks,

Andrew

Joe October 17, 2006 13:01

Re: Error when creating prismatic layer in ICEM
 
Edit mesh > Repair mesh has tools that can help fix that.

However whenever I get messages like that it means I have cocked up the geometry or mesh somehow. It's always better to find and fix the root cause of meshing issues rather than try to apply a band aid.

Andrew October 17, 2006 16:43

Re: Error when creating prismatic layer in ICEM
 
What is the problem though? How exactly can I locate which are the cells it is refering to? I have spent time making sure the geometry is of good quality, as is the mesh. Unfortunately the problem still persists...

myron October 19, 2006 05:36

Re: Error when creating prismatic layer in ICEM
 
This error usually indicates some 'problem' with the surface mesh. I think this happens if there is more than one region surrounded by surface mesh (disjoint volumes). You can also try re-orienting the surface mesh - to make sure it's all consistent.

Chebeba October 19, 2006 13:50

Re: Error when creating prismatic layer in ICEM
 
I agree with Joe, this error is usually a sign of a geometry problem.

Could be edges that don't connect properly or a very small singularity somewhere for example.


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