Improving Pump Characteristics through Double Curvature Impellers: Experimental Measurements and 3D CFD Analysis

The outlet angle and shape of impeller blades are important parameters in centrifugal pump design. There is a lack detailed studies related to double curvature impellers pumps the current literature; therefore, an experimental numerical analysis was performed. Six were made then assessed test bed simulated via 3D CFD simulation. original also tested simulated. One manufactured had same design as original, other five curvature. Laboratory tests simulations conducted with three rotation speeds: 1400, 1700, 1900 RPM. Head performance curve equations obtained for pump–engine unit based on flow each speeds. results showed that improved head by approximately 1 m range study about 2% when compared basic impeller. On hand, it observed turbulence models such k-ε SST k-ω reproduced similar physical results.