Numerical Investigation on a Prototype Centrifugal Pump Subjected to Fluctuating Rotational Speed

Table 1

Main geometric parameters of pump model.

Suction diameter 𝐷𝑖/mm	50	Inlet blade angle 𝛽1/(^∘)	25
Discharge diameter 𝐷𝑜/mm	40	Outlet blade angle 𝛽2/(^∘)	25
Blade number 𝑍	5	Impeller inlet width 𝑏1/mm	20
Impeller diameter 𝐷2/mm	160	Impeller outlet width 𝑏2/mm	10