水力发电学报2012，Vol.31Issue(3)：223-229,7.
双吸式离心泵叶轮泥沙磨损数值模拟
Numerical simulation of sediment erosion in double-suctions centrifugal pump
摘要
Abstract
Water flow and sediment movement in a double-suctions centrifugal pump were simulated with an Euler-Lagrange multiphase flow model,and erosion of the runner by different sediments was predicted with a particle erosion model.The results show that the erosion model can accurately predict the erosion rate and erosion position on the runner.The erosion rate increases significantly with sediment concentration inereasing and decreases with the decreasing of sediment diameter.For different sediment concentrations,the erosion rate on the blade′s suction side is always greater than that on its pressure side.On the pressure side the erosion near the passage inlet and outlet is more severe,while on the suction side the erosion location changes with different sediment concentration.关键词
双吸式离心泵/磨损/离散相模型/数值模拟Key words
double-suctions centrifugal pump/erosion/discrete phase model/numerical simulation分类
机械制造引用本文复制引用
钱忠东,王焱,郜元勇..双吸式离心泵叶轮泥沙磨损数值模拟[J].水力发电学报,2012,31(3):223-229,7.基金项目
国家自然科学基金资助项目 （）
中央高校基本科研业务费专项资金资助 （）
