I try to solve two different PDEs in two 3D domains separated by a shared interface. The two problems are coupled through this interface. The two domains are realistic so I need to import them as .msh.
If I import the the two domains in one global mesh (Th) I can define the interface of coupling but I can not separate the two domains and define the correspondant PDE for each mesh. In the oter hand, if I import each domain as an independant mesh (Th1 and Th2), I can define a PDE for each mesh but I can’t impose that the surface located between the two meshes is a shared surface that belongs to Th1 and Th2 in the same time.
Can someone help me to find a solution for this issue?