Effect of Radial Guide Vane Optimization on the Performance of Multistage Centrifugal Pump

The optimization of radial guide vane structure is the key measure to reduce hydraulic loss component. research model for this paper a multistage centrifugal pump with vane. Based on SST k–ω turbulence and using CFD numerical simulation technology imitate forecast performance. influences blade numbers return circumferential distribution position transportability are studied. internal fluidity characteristics transport performance pumps different structures obtained. results show that efficiency increases by 1.11% when number blades 9. When rotated 8° axially, had best result, head increased 0.54% 1.54% respectively. change will increase ratio vane, while volute decreases. can provide reference optimal design pump.