Detection of Inception Cavitation in Centrifugal Pump by Fluid-Borne Noise Diagnostic

Table 1

Main geometry parameters of model pump.

Items	Parameters	Values
Impeller	Inlet diameter, D1 (mm)	90
	Outlet diameter, D2 (mm)	170
	Number of blades, z	6
	Wrap angle, θ (°)	120
	Outlet width, b2 (mm)	13
Volute	Basic diameter, D3 (mm)	180
	Inlet width, b3 (mm)	32
	Discharge diameter, D4 (mm)	80