Numerical Investigation of a First Stage of a Multistage Centrifugal Pump: Impeller, Diffuser with Return Vanes, and Casing

Table 2

Distribution of the pressure difference.

Blade or vane height	Pressure difference Δp Pa
	Impeller	Diffuser	Diffuser return vane passages	Δ𝑝total
16 mm	424908	74626	−91742	407792
23 mm	485468	92713	−98754	479427
29 mm	512751	108942	−102010	519683