testing turbine using coupled motion
 

i'm using flow3d to test my tidal turbine in this case a darrieus turbine, but i still can't figure how to make it rotating from a prescribed velocity of water, i'm using a fixed axis method, can anyone help?
sorry bad english

i'm a bit confuse how to setup the GMO coupled motion window, i already fill the axis coordinate, density, and torque but it still not rotating in the flow of water, anyone have same problem?