[huongthao]

hi everyone,

I am doing thermal simulation by Fluent for a synchronous machine.
The rotor of this machine rotates with 8000 rpm.
I use MRF technique. Thus, it is necessary to create 2 interfaces between rotating and stationary fluids for Mesh Interfaces.
In Cell zone conditions, Do I need to apply Frame Motion for the fluid around the rotor and the rotor or only the fluid around the rotor?
And in Boundary conditions, do I must select Moving Walls with Relative to adjacent cell zone (the velocity : 0 m/s) for all of walls connecting with rotating fluid?

Thanks in advance for your reply.
Nice day!