[Gmsh] Meshing

[Christophe Geuzaine]

>
> Hello,
>             I have a problem. I4d like to make easy 3D tetrahedral mesh on the 
> geometry which is in attached file tycka.geo. It should have only 6 elements. 
> This mesh is in attached file tycka.msh. 
>         I think, this mesh is not correct. There is 4 tetrahedral elements and
> 2 elements which are planar - they aren4t tetrahedrons.
> Could you tell me, how can I make correct mesh? 
>                                 Thanks

I see no flat tetrahedron in your mesh...

The eight nodes are

1 0 0 0
2 0 0.02 0
3 0 0.02 0.004
4 0 0 0.004
5 0.001 0.02 0.004
6 0.001 0.02 0
10 0.001 0 0
14 0.001 0 0.004

and the 6 tets are

25 4 30 30 4   6 3 10 14
26 4 30 30 4   2 10 3 4
27 4 30 30 4   3 14 4 10
28 4 30 30 4   2 6 3 10
29 4 30 30 4   5 3 6 14
30 4 30 30 4   1 10 2 4

Which tet do you think is flat ?

> 
> 
> --------------------------------------------------------------------------------
> Josef Novak                                                  tel: +420485353566
> Department of Modelling of Processes          e-mail: josef.novak at vslib.cz
> Faculty of Mechatronics and Interdisciplinary Engineering studies 
> --------------------------------------------------------------------------------



-- 
Christophe Geuzaine

Tel: 32 (0) 4 366 37 10    http://geuz.org
Fax: 32 (0) 4 366 29 10    mailto:Christophe.Geuzaine at ulg.ac.be