Raotating Flow Modeling
 

Looking for opinion on modeling the rotating flow.. primarily attached with very slow moving blades e.g. wind or water turbine..

What is the best approach to model , I only have inlet velocity as input for Boundary condition. I would like to see the best choice among

1. six DOF approach with free to move in Z direction only
2. MRF rotating zone specified RPM ? Calculated based on inlet velocity ???
3. Moving Mesh approach ...


Your opinion counts a lot .... Thanks