I want to know what fluent do
 

Someone can tell me what Fluent do when i give a rotating motion to a rotor (wall) in a stationary frustum whit an inlet flux? Postprocessing show me that the simulation is reasonable whit the motion of wall and flux of air. To be more clear: I put in boundary conditions panel a rotational moving only to the rotor ( opening momentum section ), a velocity inlet to one of frustum surface and a pressure outlet to the other surface, considering stationary all the rest. I want just to know how fluent consider motion of the wall in a static mesh.

Sorry if is not very clear...Thanks a lot!