periodic flow in 3D
 

hi there can periodic flows be used to model angled vanes? I have a tube which contains 30 flutes which are used to create swirl. i am trying to model the turbulent flow for the 1/30 segment of the cylinder and set the segment planes s periodic boundaries. i want to set the segment as rotational periodic. can i do it or there is other method to handle such cinditions.

tnanks