Check CFD case

The presented project is a sand fence that have the ability to reduce the air pressure. Additionally, the shown case is done by the team but we are not sure about it specially that we can't avoid the turbulence effect. we tried to make the domain longer but we still get the same results. that lead us to ask is this case is right or  not? if it is not, what should I change?

note: The results that we want to present are the drag force( torque ) that act on the system and the air pressure between the blades.

 And the next photo show details of our case:

Geometry and mesh




And this is run and results



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