The Optimal Hydraulic Design of Centrifugal Impeller Using Genetic Algorithm with BVF

Table 5

The estimated performance of 6 impellers at design point.

	Model 1	Model 2	Model 3	Model 4	Model 5	Optimal design
Head coefficient	0.849	0.838	0.836	0.876	0.834	0.820
Efficiency	77.4%	78.1%	78.4%	80.9%	78.6%	87.5%