For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is__________________? May 3, 2020 – by admin For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is__________________? A. 2250 B. 1125 C. 460 D. 230 (Correct)