> On 29 Mar 2020, at 12:24, Sabrina Zacarias <[email protected]> > wrote: > > Dear all, > > I am a bit confused with the output of the meshing of my model and would > really appreciate a piece of advise: > > My geometry consists of an axial section of a cylinder (which plays the role > of the air surrounding my model ) containing several (sections of) rings, > which are electrodes, plus two (sections of ) disks, which are the cathode > and anode. The fact that these are sections and not complete cylindrical > pieces is to make the meshing faster. And the post processing software can > handle it. > > Anyway, In the real model I need to use ~200 electrodes. So far I have not > been able to achieve a mesh without errors. I get ‘Unable to recover the edge > XX on curve XX (on surface XX )’, and also ’No elements in volume XX’. >
With Nel = 200 your geometry is invalid (it auto-intersects), whereas with Nel = 20 it is correct. Christophe > What I find confusing is that when I reduce the number of electrodes x10 > lower, without changing anything else, the meshing is correct. > > I am obviously missing something or not approaching the problem the right > way. I attach the .geo files if someone could please take a look. > > Best regards, > > Sabrina > > <3d_main.geo> > <f_box.geo> > <f_electrode.geo> > <f_plates.geo> > > — > Sabrina Zacarias > Institut für Kernphysik > Technische Universität Darmstadt > S2|14 / office 319 > Schlossgartenstr. 9 > > 64289 Darmstadt > > Office: +49 6151 16 23589 > > _______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine
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