[liladhar]

hi everyone
I am trying to simulate propeller behind the hull as a actuator disk. From literature and posts from this forum i came to know that this can be achieved using an actuator disk without simulating the actual propeller.
my purpose is to find the wake in front of the disk. For that i created a subdomain which is assigned as a 3D momentum source. I followed the tutorials for this.
now i want to assign the axial and radial accleration to the disk. does anybody knows how do i do this?
i tried using zero values for momentum source the flow pattern was good. when i use some constant value for momentum source, the flow pattern is not as expected.
Does any body know how to write CEL for velocity which is varying with radius from disc center to tip?
i was trying writing but always getting syntax error.
please help me. i m in need.
thanks in advance