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

Table 6

Test arrangements and scheme.

Test serial number	A	B	C	D	Efficiency η (%)	H (m)
1	1	1	1	1	49.06	30.58
2	1	2	2	2	48.95	29.12
3	1	3	3	3	48.06	25.92
4	2	1	2	3	50.58	33.38
5	2	2	3	1	50.16	33.04
6	2	3	1	2	47.69	27.91
7	3	1	3	2	49.80	34.85
8	3	2	1	3	49.86	31.25
9	3	3	2	1	47.20	29.52