First recommendation, look through the swx kb and the solving engineering problems document. That will tell you about sizing the rotating reiln. You don't mention the gap between the parts but you'll see that this is usually recommended but you need to us stators.
Second, it sounds like a moving wall would be a better bet.
Third, I don't know if you can heat something that is a rotating region. Moving wall might work. Check the kb.
It also sound a like you want to use roughness with rotation, I do not believe that is possible.