A Field Comparison of Static and Dynamic Hydrocyclones ...
1993-5-1 · In a finite-residence-time vessel like a hydrocyclone, separation velocity is directly proportional to separation efficiency. Stoke's law can be expressed as. v = (-)gd /18, where v=separation velocity, =water specific gravity, p, =oil specific gravity, A = water viscosity, g = 32.2 ft/sec, and d=droplet diameter.