Hi,
I'm using an older version of comsol and am trying to model quite a simple problem. The geomerty comprises of a representation of an offeset rotating impeller. I'm trying to model the rotation of the impeller using a rotating domain using the rotating machinery physics. I'm using form assembly. As a result the two domains share ab identity pair which I've indicated with a flow continuity node. However when I go do mesh the entire domain the mesh nodes do not aline. Aswell it seems that the two domains overlap in places and don't cover free space in other places. I've included the full model and screenshots below. Any advice is much apperciated.
Thanks, Dónal