MULTIOBJECT OPTIMIZATION OF A CENTRIFUGAL IMPELLER USING EVOLUTIONARY ALGORITHMS

Application of the multiobjective evolutionary algorithms to the aerodynamic optimization design of a centrifugal impeller is presented. The aerodynamic performance of a centrifugal impeller is evaluated by using the three-dimensional Navier-Stokes solutions. The typical centrifugal impeller is redesigned for maximization of the pressure rise and blade load and minimization of the rotational total pressure loss at the given flow conditions. The B閦ier curves are used to parameterize the three-dimensional impeller blade shape. The present method obtains many reasonable Pareto optimal designs that outperform the original centrifugal impeller. Detailed observation of the certain Pareto optimal design demonstrates the feasibility of the present multiobjective optimization method tool for turbomachinery design.

作 者： Li Jun Liu Lijun Feng Zhenping   作者單位： Li Jun,Feng Zhenping(Institute of Turbomachinery,School of Energy & Power Engineering,Xi'an Jiaotong University,Xi'an 710049, China)

Liu Lijun(Research Institute for Applied Mechanics,Kyushu University,Fukuoka 816-8580, Japan) 

刊 名： 機械工程學報(英文版)  EI 英文刊名： CHINESE JOURNAL OF MECHANICAL ENGINEERING  年，卷(期)： 2004 17(3)  分類號：   關(guān)鍵詞： Centrifugal impeller Navier-Stokes solver Evolutionary algorithms Multiobjective optimization Design  

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