Hi Guys, I want to use a fan which can move air up to 850m^3/h to cool my electrical machine. I mount the fan at one end, so the air can flow through the stator ducts, rotor ducts and the air-gap. How will the flow distribute among the stator ducts, rotor ducts and the airgap? Are there some equations? If the flow distribution is known, flow average velocity can be calculated, then Re and the convection heat transfer coefficient h and finally the temperature distribution of the machine can be got by the finite element analysis. Thanks in advance!