offset mesh from generic shape (PML)
Hello, I am working on automatic PML in FEniCSx and I need to know if it is possible to make an operation like the one in the picture:
Starting from a generic 3D shape convex geometry I would like to offset its boundary giving an offset distance (thickness). After that, I would like to:
- Mesh both volumes, making them connected (mesh1 and mesh2) while keeping the boundary definition.
- Export separately the mesh that only fills the offset (mesh3).
- In both cases, "boundary" and "boundary offset" need to be defined as physical surfaces.
Thank you very much for the help!