Optimization Design for the Centrifugal Pump under Non-Uniform Elbow Inflow Based on Orthogonal Test and GA_PSO

The non-uniform inflow caused by the elbow inlet is one of main reasons for low actual operation performance a centrifugal pump. Orthogonal experiment and GA_PSO algorithm are used to improve head efficiency pump with an based on method combining numerical simulation prototype in this paper. effects design parameters, including radius ratio, blade angle, number, wrap outlet impeller diameter, width flow area studied orthogonal experiment. angle major factor match reduce loss contribute enhancing cavitation characteristics. particle swarm optimization (PSO) optimized integrating genetic (GA), which ensures that PSO-calculation result avoids falling into local global optimal solution obtained as quickly possible. optimally designed algorithm. According test results, 4.7% higher than original