[amind]

Hi friends

I have little knowledge of CFD and Fluent. I have questions about simulating a vertical axis wind turbine in Fluent. Problem specifications are as below:

* 3 blades H type VAWT
* 2D simulation
* Unsteady
* wind speed= 5 m/s
* Tip Speed Ratio= 1, 1.5 , 2 , 2.5 , 3
* time step size= 0.0001 s
* K-omega SST model


How can I calculate and check "Y+" in Fluent?

How many "time step" is required to the problem converges?

How many "iteration per time step" is required?

How can I calculate the "average torque coefficient"?
I know that the torque coefficient= torque/(0.5*rho*v^2*A*L) but I don't know how I can calculate and save it in the Fluent software.


Thanks