Hi Matthias,
It would have been nice to see the script file you are working on to better identify the error, nevertheless here are a few questions : · Are you trying to mesh a disk or a donut shape ? In the latter case, did you properly define the hole in the surface (see Plane Surface here<http://gmsh.info/doc/texinfo/gmsh.html#Surfaces>)? · Do you really need fields to control your mesh density ? Using point characteristic lengths (see Point here<http://gmsh.info/doc/texinfo/gmsh.html#Points>) may be enough and far easier to implement. · If you want to mesh a disk, you will want to embed the inner circle in the disk defined by the outer one using the Line in Surface command (see here<http://gmsh.info/doc/texinfo/gmsh.html#Miscellaneous-mesh-commands>). Did it help ? Let me know if you still have questions, Guillaume DILASSER Doctorant SACM / LEAS CEA - Centre de Saclay - Bât.123 - PC 319c 91191 Gif sur Yvette Cedex - France - [email protected]<mailto:[email protected]> -----Message d'origine----- De : gmsh [mailto:[email protected]] De la part de Matthias Sitte Envoyé : lundi 19 juin 2017 13:18 À : [email protected] Objet : [Gmsh] refining the mesh of a circle with Attractor Fields Hi all, I'm trying to set up the following problem: 1) Create a circular geometry with radius R_outer using 4 Circles and a Line Loop which defines the outer boundary of the mesh. 2) Create another closed circle (again made out of 4 Circles) with radius R_inner inside the circular mesh. 3) Goal is to reduce lchar and create a finer mesh close the inner circle, but keep the coarser mesh everywhere else. So far I've started from the example t10.geo and mostly got what I wanted. But I observed that if I close the inner circle, all of the mesh within the circle is meshed with reduced lchar, not the lchar I would've expected. When I open the circle by leaving out segment(s), the result looks better w.r.t. mesh size, but it's of course not what I want. Am I missing something here? Best, Matthias _______________________________________________ gmsh mailing list [email protected]<mailto:[email protected]> http://onelab.info/mailman/listinfo/gmsh
_______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
