Periodic boundaries with structured/extruded meshes
Unless I am mistaken, the proper periodicity information is generated with structured or extruded meshes only when the periodic conditions are specified after meshing (cf. attached script). This seems rather unusual to me, compared to the normal workflow in Gmsh (i.e. specifying the geometry and meshing constraints first).
Questions:
- Are periodic conditions specified after meshing guaranteed to work for structured/extruded meshes?
- Are periodic conditions specified after meshing guaranteed to work for generic unstructured meshes?
- Should the behaviour be changed so that periodic conditions defined before meshing work as well with structured/extruded meshes?
If the current behaviour is not meant to change, I think that it would be good to mention it in the documentation.
Thank you!
Edited by Thomas Toulorge