Optimization for Cavitation Inception Performance of Pump-Turbine in Pump Mode Based on Genetic Algorithm

Table 2

Original values and variation range of controlling parameters.

Parameters	Original values	Variation range
Ellipse ratio	3	1~5
Thickness at 0%	1.058 mm	1.058~4.058 mm
Thickness at 4%	4.664 mm	2.664~6.664 mm
Thickness at 8%	5.911 mm	3.911~9.911 mm
Thickness at 12%	6.613 mm	4.613~10.613 mm
Thickness at 16%	6.967 mm	4.967~10.967 mm