Research on Optimization of Splitter Blade of Centrifugal Pump Using CFD

In this paper, a method to determine the optimal design parameters of splitter blade of a centrifugal pump is proposed by using CFD (Computational Fluid Dynamics) simulation to raise the pump head. The pump performance is analyzed by CFD software and design parameter is optimized by MOGA (Multi Object Genetic Algorithm). The present paper aims to raise the pump head as high as possible. Throughout the simulation of the pump with splitter blades, it is found that the reverse-flow region near the suction side of the blade can be reduced by installing splitter blades and the pump head can be improved. We have analyzed possible design alternatives by CFD and implemented the design optimization by applying the MOGA. Thus, we obtained the reasonable design parameters of a centrifugal pump with only splitter blades so that we could increase the head by 20%.