Abort. The problem described is not compatible with the rotating frame approximation. Try to google the problem and get some insight into what the difficulties are. This problem is non trivial. I think the main guys for this are in the UK - at least for screw compressors which would be similar.
with bill on this one, this is clearly outlined as a limitation in the technical reference
what do you want to learn from this analysis? are you looking to buy a software to handle this problem or looking for someone to do the work for you? feel free to contact me at email@example.com, i may be able to connect you with someone to help you out.
Thanks for the help guys. We had talked to a company with a software PumpLinx that is designed to model this exact scenario, providing cavitation, efficiency, torque, etc for the gear meshing while it is rotating. I saw the rotating reference frame and initially thought Flow Simulation may be able to work, but the dual rotation with interference will not. Appreciate the input.