modeling a vertical axis wind turbine
 

Hi everyone !
I am new to ICEM CFD. my thesis is about simulating a 3 bladed VAWT. but I have some general questions at the first of my job :

1- I have to do my job with 3 blades which are fixed on a circle with 120 degrees phase difference but i only have produced 1 blade in catia as you see in Image. I imported that blade to ICEM and I drew a circle . but i don't know how to duplicate (rotate) and transform my blade 120 and 240 degrees to produce 3 blades around circle. could you help me ?

2- I want my blades to rotate in the final model. how should i mesh so that my model could rotate in final simulating ? i mean i want a dynamic simulation.

thank you all in advance ;)