Cannot mesh geometry with free face

More
3 years 11 months ago - 3 years 11 months ago #3419 by vgeza
Cannot mesh geometry with free face was created by vgeza
I ran into a problem meshing geometry where a thin volume is replaced with a face. This might save a lot of computation efforts, but it seems that netgen fails to mesh such geometries.

I am using OCCgeometry. The used BREP file is attached.

Attachment not found


[attachment=undefined]preview.jpg[/attachment]

When using netgen/ngsolve interface, meshing fails with errors
Code:
GIVING UP retry Surface 21 Face 21 / 21 (plane space projection) meshed area = 0.0200098 maximal area = 0.02 GIVING UP ERROR: Problem in Surface mesh generation WARNING! NOT ALL FACES HAVE BEEN MESHED SURFACE MESHING ERROR OCCURRED IN 1 FACES: Face 21

I also tried meshing manually - first meshing with nglib all the faces, then merging them into volume and meshing volume. Such an approach works for other geometries, but not for this one. Error is "Stop meshing since surface mesh not consistent".

Is there a way or strategy to mesh such geometries?
Last edit: 3 years 11 months ago by vgeza. Reason: missing attachments
More
3 years 11 months ago #3420 by vgeza
Replied by vgeza on topic Cannot mesh geometry with free face
Apparently attachments are missing. Adding here

File Attachment:

File Name: test_free_...7-3.brep
File Size:20 KB
Attachments:
Time to create page: 0.096 seconds