Application of genetic algorithm in optimal design of centrifugal pump
HE Xi-jie1, 2, ZHU Guang-qi1, 2, LAO Xue-su2
1.Shijiazhuang Kingda Pump Industry Group Co.Ltd, Shijiazhuang, Hebei 050035, China; 2.Shijiazhuang Slurry Pump Institute, Shijiazhuang, Hebei 050035, China
Abstract：Optimal design method of centrifugal pump is presented and discussed by using genetic algorithm.The optimal design of geometrical parameters for low specific speed centrifugal pump is studied by using genetic algorithm.Mathematic model of optimal design for lowmiddle specific speed centrifugal pump impeller parameter is established;multi-objective optimal design is changed into single one.The impeller parameters of low specific speed centrifugal pump are optimized through genetic operating of multi-selection,crossover and mutation and after a large number of calculations,compared with designed pump by traditional method.The results show that the pump efficiency of optimal designed impeller by using genetic algorithm is increased a little and the unstable characteristic curve is eliminated.Optimal design method by using genetic algorithm has the advantages of simple in thought,easy to realize,and notable effect in application than traditional ones.
