Importing 3D mesh

[Zeinab_javid]

Hello, I have a Questions regarding import a 3D mesh into Fenics code from COMSOL
I have a lattice cell and I set a Periodic Boundary conditions to this model, Now can I export the Periodic mesh into Fenics ?

[sbhasan]

If you can import it to gmsh then generally you can import it to fenics too. There are several past conversations around this and the following could be a good starting point:

Importing geometry and giving new tags

Dear community, I’d like to add a new numerical case to my study. It happens that the geometry is not super complex, but still almost impossible to do it by hand with gmsh python library. I have the geometry in COMSOL, and I’d like to import it in FEniCSx. The most important point, is that I would need to import it in FEniCSx (or import the mesh, that would be even better), but I need to be able to give a tag to certain faces as it would be done with gmsh with gmsh.model.addPhysicalGroup(2, [s…

If you want to impose periodicity on the physical model then you will most likely have to do additional step of making the mesh periodic in fenicsx too.

[Zeinab_javid]

@sbhasan

conversations around this and the following could be a good starting point:

Thank you very much.