you can just import the mesh from gmsh and then in Fenics can create boundary markers. See one of my previous post (Occlude a cylinder with suction pressure), where I first imported a 3D cylinder mesh and then defined the boundary marker in Fenics.
you can just import the mesh from gmsh and then in Fenics can create boundary markers. See one of my previous post (Occlude a cylinder with suction pressure), where I first imported a 3D cylinder mesh and then defined the boundary marker in Fenics.