[Hybrid]

Hi,

I am simulating a helicopter rotor in Hovering, it's two bladed heli. I setup only one blade with periodic boundary condition and used MRF in Ansys Fluent.

The confusion is about the Rotating Speed input to the Moving Cell Zone. In my case, rotor should rotate Clock-Wise Direction looking from top.

I simulated two situations where once I input a "Positive Rotation Speed i.e. CCW" and in second case I put "Negative Rotation Speed".

Which one is correct? as my case is new, no data is available to compare the results. I attached Velocity vectors in Moving Zone and in Stationary Frame.

The solution is not fully converged in one case so just check the orientation.

One more thing, How can I give Pitch Angle to blade?

Kindly comment and suggest?