Suction specific speed and inlet vane angle

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

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,