人民长江2017，Vol.48Issue(10)：79-82,4.DOI:10.16232/j.cnki.1001-4179.2017.10.017
分流叶片对离心泵内部固液两相流的影响
Effect of splitting blades on solid-liquid two-phase flow in centrifugal pump
摘要
Abstract
In order to study the influence of splitting blade on the solid-liquid two-phase flow in centrifugal pump, numerical simulations of unsteady flow are carried out for the full channel of centrifugal pump without splitting blade and with three types of splitting blades based on the model of solid-liquid two-phase flow.The effect of splitting blade on external performance of the pump, pressure pulsation on the blade surface,distribution of particle volume fractions on the blade surface and slip velocity of particles on the blade surface are analyzed.After arranging the splitting blades,the lifting head and efficiency of the pump are significantly improved,particle distribution on the blade surface is more uniform,and the slip velocity of particles on the blade surface decreases in different degrees.The erosion degree of the blade surface is reduced.When the inlet diameter of splitting blade is 0.65D2,the pressure pulsation amplitude is minimum at the outlet of the blade, reducing the vibration and noise of centrifugal pump in operation.关键词
表面颗粒/数值模拟/分流叶片/离心泵Key words
surface particles/numerical simulation/splitter blade/centrifugal pump分类
建筑与水利引用本文复制引用
廖姣,张兴,张文明,廖功磊..分流叶片对离心泵内部固液两相流的影响[J].人民长江,2017,48(10):79-82,4.基金项目
国家自然科学基金资助项目(51379179) （51379179）
西华大学研究生创新基金资助项目(ycjj2016198) （ycjj2016198）
四川省科技计划项目(2017JY0047) （2017JY0047）
