Optimization Design and Internal Flow Field Study of Open-Design Vortex Pump

Table 7

Variance analysis of efficiency and head.

	Efficiency η (%)				H (m)
	A	B	C	D	A	B	C	D
K1	146.070	149.439	146.610	146.421	85.620	98.811	89.739	93.141
K2	148.431	148.971	146.730	146.439	94.329	93.411	92.019	91.881
K3	146.859	142.950	148.250	148.500	95.619	83.349	93.810	90.549
k1	48.690	49.813	48.870	48.807	28.540	32.937	29.913	31.047
k2	49.477	49.657	48.910	48.813	31.443	31.137	30.673	30.627
k3	48.953	47.650	49.340	49.500	31.873	27.783	31.270	30.183
R	0.787	2.163	0.470	0.693	3.333	5.154	1.357	0.864