how to change angle of attack of a rotating blade in frozen rotor
 

hi,

I am simulating a 3D rotating blade in CFX. I use the frozen rotor.

Currently, this is a steady problem. so, I just change the angle of attack in the Design modeler.

But I am trying to simulate a transient problem, I want the angle of attack can change as the time, namely azimuth angle, like pitch control in rotorcraft.

How to do that?

Thanks in advance.