Reply To: Overlapping contact regions

[Rob]

Contact regions are to allow the solvers to pass information between disconnected surfaces as long as they're fairly close together (based on solver tolerances). If you only intend and expect to pass heat where the faces actually touch they're not necessary. However, because parts of those faces are in very close proximity the meshing tool thinks they should be in contact: it's a tolerance rule and whilst useful can be a little overzealous in it's choices.