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Old   July 22, 2014, 08:00
Question Error: boundarymesh is overlapping >? See attached.
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Gowain
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Hi
When trying to create prismatic boundary layer I receive an error:
can someone please explain the following error and how I would go about rectifying it:
"Netgen stopped with the following error:Stop meshing since boundary mesh is overlapping."

I have successfully completed this step in the tutorials; I presume the geometry is too complex for engrid in this case?>

attached is an image of the case: I intend to evaluate human comfort and boundary layer along the human head and extremities is of importance:
hope to hear from you soon

kind regards
g
Attached Images
File Type: jpg DomainSIm1.jpg (53.9 KB, 35 views)
File Type: jpg BodyPostSurfaceMesh.jpg (48.3 KB, 34 views)

Last edited by eaglemckenna; July 22, 2014 at 09:56. Reason: Changes to Geometry
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Old   July 23, 2014, 07:23
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Icaro A. Accordi
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When you have a narrow channel you need a proportional fine mesh because the layer thickness is going to be relative to the surface mesh size. We can see big differences between your mesh that is not compatible with a layer addition. I can recommend a refinement using a geometric source. Would be really cool if Engrid had a refinement due proximity.
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Old   July 25, 2014, 08:26
Arrow divide prismatic boundary layer - same error - getting there...
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Gowain
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Hi

Thanks for your response.
I have managed to change the geometry to include improved enhanced features and mesh - I can create a prismatic boundary layer, but when I try to divide the layer I once again receive the "there seems to be a bug in engrid" error, so once I attempt to improve volume mesh (netgen) I once again receive the overlapping faces error - I would be most grateful for some guidance (see attached - geometry with prismatic boundary layer)

kind regards
g
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File Type: jpg PrismaticBoundaryLayerSIM1.jpg (97.1 KB, 27 views)

Last edited by eaglemckenna; July 25, 2014 at 10:21.
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Old   July 27, 2014, 08:18
Smile sorry guys - sorted
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Gowain
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Sorry guys - I managed to sort the problem -the domain was causing the problem - see attached - I will let you know the results - should be interesting!
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File Type: jpg sim1prisvoldivide.jpg (74.0 KB, 50 views)
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Old   December 2, 2014, 09:57
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Hello,

i'm having the exact same problem with my geometry. I did all the steps according to the 'damper' tutorial including edge and border zone refinement using sources. BUT when i want to create the prismatic boundary layer it gives me the "Netgen stopped because of overlapping faces" error. I'm not sure what to do now. Can u or anyone help me with this ?!!

See attached my geometry

Last edited by BlnPhoenix; July 21, 2015 at 04:03.
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Old   June 22, 2015, 02:19
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Javier de la Sierra
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Quote:
Originally Posted by eaglemckenna View Post
Sorry guys - I managed to sort the problem -the domain was causing the problem - see attached - I will let you know the results - should be interesting!
Hi eaglemckenna, what did you mean by "the domain was causing the problem". I'm having the same issue and I can't find any information about how to resolve it.

Thanks!
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Old   July 17, 2015, 05:28
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Quote:
Originally Posted by javier.delasierra View Post
Hi eaglemckenna, what did you mean by "the domain was causing the problem". I'm having the same issue and I can't find any information about how to resolve it.

Thanks!
Hola Javier,

it's just a guess but I think he means the geometry he started with. For example you have to check on your surface normals, watertightness, et cetera..

Best regards,

Kate
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