> Basically, every time I run Gmsh on the same file I get a different mesh. > Sometimes the differernce is very small, but there are times when it quite > large. For example, for the same CAD file and meshing parameters, half of the > time I am getting a good mesh while half of the time I get one that crashes > the solver (because of a few “flat” elements).
Are you optimizing the mesh? This isn't done by default but can be quite important for subsequent finite element analysis. http://geuz.org/gmsh/doc/texinfo/gmsh.html#index-g_t_002doptimize_005b_005fnetgen_005d-34 > Doing some googleing on the subject I found out that this is the intended > behaviour of Gmsh and that this randomness cannot be stopped. However, it is > very inconvenient for us, one reason being that we cannot support other users > since we cannot reproduce their exact problems. Dipl.-Ing. A. P. reported a few weeks ago being able to fix the randomness by meshing from the command line. I haven't tried it, but it seems like an easy fix. http://www.geuz.org/pipermail/gmsh/2011/006347.html _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
