Experimental Investigation and Passive Flow Control of a Cavitating Centrifugal Pump

Table 1

Main characteristics of the tested impellers.

Impeller characteristics	Values
Suction pipe diameter 𝐷𝑠, mm	100
Diameter of the impeller at the suction side 𝐷1, mm	108
Diameter of the impeller at the pressure side 𝐷2, mm	180
Impeller width at the suction side 𝑏1, mm	15.6
Impeller width at the pressure side 𝑏2, mm	15.6
Blade leading edge angle 𝛽1, deg	9, 15, 21
Blade trailing edge angle 𝛽2, deg	20
Maximum blade thickness 𝑆, mm	7.5
Number of blades 𝑧	5