Hello, I'm having an issue modelling a wtaer pump in Flow Simulation.

I modelled a basic propeller, placed it in a dummy body and applied a rotating region to the dummy body. The propeller is completed integrated into the dummy body. 

Basically, when I change the rotational velocity in the Rotating Region tab, the linear direction (which usually follows the right hand rule) doesn't change.

Any ideas why that could be?

Thank you in advance!