Numerical Simulation and Computational Flow Characterization Analyses of Centrifugal Pump Operating as Turbine

Table 3

Parameters at ϕ = 0.8 at different rotational speeds for the original impeller.

N (rpm)	ψ	π	ϕ	η (%)
1250	8.8	0.16	7.71	0.00202
1500	7.1	0.07	6.45	0.00207
1750	6.6	0.08	5.53	0.00184
2000	6.4	0.04	4.84	0.00106