Hello Marcus - Indeed, there was small bug in our Netgen interface, which led to some weird size-dependency during Netgen's initial mesh generation.
This should be fixed in tomorrow's nightly snapshot. Can you give it a try and let us know? PS : your transfinite volume seems to be wrong (volume/surface edges intersect). You might want to extrude the volume instead, as extrusions will enforce the matching automatically. Marcus Drosson wrote: > Hello, > > a problem appears when I try to generate a 3D grid that combines > transfinite and unstructured volumes. Using the Netgen grid generator, > the memory size increases up to the breakdown of my computer (more than > 3GB). The 2D grid is constituted of only 15244 triangles. Tetgen is able > to generate a 3D grid but the interface between the transfinite and the > unstructured grid doesn't respect the continuity of the tetrahedrons > (huge arbitrary elements at one side and a structured grid at the other > side). > > In order to verify that the problem doesn't come because I use different > types of grids, I put into comment everything except two rectangular > boxes (-> new.geo). Even for this very simple case, the grid generation > failed due to a memory problem. Using gmsh version 1.65, any problem > appears and the grid is generated in a few seconds. In the same way, > when I create a new .geo file to draw a box (with/without a hole), > everything works correctly. Thus the problem shouldn't be related to a > wrong configuration parameter of gmsh. > > ".geo" -files and the gmsh output are attached. > > Thanks! > Marcus Drosson > > > > ------------------------------------------------------------------------ > > _______________________________________________ > gmsh mailing list > [email protected] > http://www.geuz.org/mailman/listinfo/gmsh -- Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
