International Journal of Rotating Machinery

Research Article

Suppression of Performance Curve Instability of an Axial-Flow Pump by Using a Double-Inlet-Nozzle

Figure 8

Pump head (above) and pump efficiency (below) of original smooth casing, grooved casing and double-inlet-nozzle.
536850.fig.008a
(a)
536850.fig.008b
(b)