What is the connection between Suction Specific Speed and Minimum Flow?

Suction specific speed and inlet vane angle

The connection between suction specific speed Sω (NSS) and minimum flow (Qmin) is that, in general, a higher value of Sω (NSS) is associated with a higher value of Qmin.  Beyond that generalized statement, however, there is wide range of deviation and exception. For rotodynamic (centrifugal, mixed-flow and axial flow) pumps suction specific speed is the main […]