tetramesh
Hi. I am meshing a close volume geometry. I used the tetramesh to do it. after finish, i got about 400000 elems and 90000 nodes. when i used 'check elems' to test the mesh quality, my jaconbi was fine, the aspect ratio had 64 elems fail, skew had 241 elem fail and tet collapse got 84 elem fail. Could anyone tell me my meshing is good or bad, how to know that, and in case it was bad, how i can fix the bad elems. ( i've already try remeshed, but the result can not be much better )
In check elem panel, i let all number in default:
- aspect > 5.000
- skew > 60.000
- tet collapse < 0.4
Answers
-
Element Quality checking gives you some ideas about the quality of your mesh. It's not so easy to say 'good' or 'bad'. Depending to your analysis goal, to analysis type, to your FE solver, ... and depending to your experiences too. A 'not-so-good' meshing for one solver maybe 'good enough' for another solver, another analysis.
Some general rules I do with TET10 meshing with SAMCEF solver:
- Aspect <= 3~4
- Jacobian >= 0.6~0.7
0