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