Degenerate elements

[martijn]

I am quite new to Elmer but solved a number of relatively simple thermal problems, both 2D and 3D. Now I have a very simple problem at hand, but something appears to be wrong with the mesh: I get hundreds of error messges of the type:
ERROR:: ElementMetric: Degenerate 2D element: 0.0000000000000000
Whats wrong? The geometry is ridiculously simple (rectangle with two hot and two cold spots) so I do not understand what is happening. I used gmsh to generate the mesh. All files are in the attached zip file.

[Marmor]

Hi i had the same problem, also with a very simple 2D-mesh. For me the solution provided in this post worked

i used the x-z-plane for my geometry in gmsh and got the problem with degenerate elements. then i mapped the z-coordinate to y (if i got it right)

Code: Select all

Coordinate Mapping(3) = 1 3 2

as suggested in the above linked post and everything worked well

regards, marmor

edit: ah, just saw it was you who opened the thread i linked to >.< but anyway maybe someone else having trouble with degenerate elements now can find the solution easier