[Gmsh] Periodic boundary

Ruth V. Sabariego r.sabariego at ulg.ac.be
Sat May 22 08:22:34 CEST 2010

You can extrude the surface and remove the volume obtained in order to 
take into account
the other elements inside your 3D cube.


Line(1) = {1,2};
Line(2) = {2,3};
Line(3) = {3,4};
Line(4) = {4,1};

Line Loop(1) = {1,2,3,4};
Plane Surface(1)={1};

Delete {Volume{vol[1]};}

The two surfaces on xy planes have the same mesh.


On 22/05/10 01:20, Jehanzeb Hameed wrote:
> Hello,
> I am trying to create a 3-D cube mesh, such that the opposite faces
> along x and y directions have identical surface meshes, which will be
> useful for me to implement periodic boundary conditions. Is there a
> way to do this in gmsh?
> Note that there will be other stuff in the interior of the cube, e.g.
> a cylinder, that will also need to be meshed. I know how to create a
> mesh such that the cube and the cylinder which runs through it is
> meshed, but I dont know how to create periodic (or similar) surface
> meshes at opposite faces of the cube.
> Thanks,
> -Jehanzeb
> _______________________________________________
> gmsh mailing list
> gmsh at geuz.org
> http://www.geuz.org/mailman/listinfo/gmsh

Dr. Ir. Ruth V. Sabariego
University of Liege, Dept. of Electrical Engineering&  Computer Science,
Applied&  Computational Electromagnetics (ACE),
phone: +32-4-3663737 - fax: +32-4-3662910 - http://ace.montefiore.ulg.ac.be/