useful horsepower= motor pressure drop * flowrate: q, x" i: ], [3 n0 |3 m7 I
% P7 s6 s. w- z" ~: X' Pflowrate = displacement * angular velocity.9 R E: [" g8 ?) g6 J+ [: J3 g/ [
Q6 W8 u% e7 ?& a) f" s9 R. N2 T
probably these two equations would help you. hope so.