叶片前缘椭圆比变化规律对离心泵初生空化性能的影响  

Influence of Change Law of Blade Leading-Edge Ellipse Ratio on Inception Cavitation Performance of Centrifugal Pump

作　　者：张方芳 陶然 肖若富 Fang-fang Zhang;Ran Tao;Ruo-fu Xiao(College ofWater Resources and Civil Engineering,China Agricultural University;Beijing Engineering Research Center of Safety and Energy Saving Technology forWater Supply Network System,China Agricultural University)

机构地区：[1]College of Water Resources and Civil Engineering,China Agricultural University [2]Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System,China Agricultural University

出　　处：《风机技术》2022年第6期18-21,共4页Chinese Journal of Turbomachinery

基　　金：National Natural Science Foundation of China(51909131)。

摘　　要：In this research,a parametric control method of blade leading-edge geometry is proposed for a centrifugal pump based on previous study.Based on reasonable blade deconstruction scheme,the method adopts the change rate of leadingedge ellipse ratio from impeller shroud to hub(RaLE),the initial blade thickness(Y0)and thickness diffusion rate(Rt)as three control parameters for the blade leadingedge.The research method of combining theoretical analysis,experimental data and numerical simulation is adopted.The research indicated that according to the operating condition of centrifugal pump,the reasonable design of blade leading-edge ellipse ratio can improve its cavitation performance.This research not only proposed an effective and feasible parameter control method,but also laid a theoretical foundation for improving the inception cavitation performance of centrifugal pump through effective design.

关 键 词：Centrifugal Pump Leading-edge Ellipse Ratio Inception Cavitation 

分 类 号：TH311[机械工程—机械制造及自动化]