I am currently trying to run a flow simulation on air flowing through a turbine. I have set my inlet conditions, and my outlet conditions are standard atmospheric conditions, and have run the simulation. The only thing I cant get my head around is im not sure how to make the turbine free to move as air passes over it (If this is possible). The turbine is powering a generator but this is being ignored at the moment. I have followed tutorials but they are all done by setting the impeller at a specified angular velocity. All I want is it to be free to move, as I feel this would affect my results as I am trying to find the efficiency of the turbine. Just wondering if anyone knows how to do this?
Thanks in advance,