Experimental Investigation on Cavitating Flow Induced Vibration Characteristics of a Low Specific Speed Centrifugal Pump

Table 1

Main design parameters of the model pump.

Parameters	Value
Nominal flow rate	55 m^3/h
Design head	20 m
Nominal rotating speed	1450 r/min
Specific speed	69
Blade number	6
Impeller inlet diameter	80 mm
Impeller outlet diameter	260 mm
Impeller outlet width	17 mm
Volute inlet diameter	290 mm
Volute outlet diameter	80 mm
Blade outlet angle	30°
Wrap angle	115°
Tangential velocity at impeller exit	19.7 m/s
Angle of volute tongue	20°