CAMAL edge/face intersection

Coreform Cubit Meshing
#1

I’m working on a pretty nasty CAD model. When I tried to mesh the volume with simple tetmesh I often run into the below error:

Found edge/face intersection: 1 2 with 3 4 5

which, I guess, indicates bad geometry, or a bad mesh size.

But I don’t understand what those numbers stand for, is it node ids, or something else? If I know where the problem happens (on which surfaces, etc.) I can go back and fix it.

Anybody experience this same problem can help me? What are those numbers stand for, and there is a way to locate where the bad geometry is? Thanks a lot!

#2

That is an error that is coming out of the tet mesher. Try typing “set keep invalid mesh on” at the command line. Then you can check the quality of the resulting mesh and find the areas that have bad elements.