I am using MRFSimpleFoam and S
 

I am using MRFSimpleFoam and SimpleFoam. I have an Testcase whith cyclic boundary conditions with an angle of 90° to each other. so lets say i am calculationg a quarter of the geometry.

now looking on the results foam thinks that it is a periodicity in x direction not rotational.

How can I tell him, to force to make rotational periodicity and not translational?

t1000

Gabriel