[arashn18]

Hi
I want to analyse a simple vertical wind turbine (savonius) using CFX.
The model is in a wind tunnel and I am using K-omega turbulent model (I've tried SST too) and I have defined the turbine as a new domain in Ansys desighn modeler and subtracted it from the wind tunnel. Then I defined this domain as a rotating domain in CFX.
I've tried different TSR, wind speed, rotating speed, model size, mesh size and etc but my result never get converged and doesn't reach for a steady amount of torque.

could somebody help me??
here are some picture of my analyse:
p.s. the user point 1 is torque of wind turbine.
https://ibb.co/bWL6bQ
https://ibb.co/bMJEVk
https://ibb.co/gWi3O5
https://ibb.co/njzMAk