Research on Pump Volute Design Method Using CFD

Table 5

List of pump BEPs with different radial gaps.

Radial gap	Capacity (m^3/h)	Efficiency (%)	Head (m)	Shaft power (kW)
5 mm	232.4	76.63	90.20	74.47
10 mm	232.4	76.72	90.31	74.15
15 mm	215.8	76.92	94.08	71.85
20 mm	232.4	75.45	88.37	74.10