• CN：11-2187/TH
• ISSN：0577-6686

›› 2012, Vol. 48 ›› Issue (14): 169-176.

• 论文 •

### 两相流离心泵水力输送性能计算分析

1. 浙江大学流体动力与机电系统国家重点实验室;浙江理工大学浙江省流体传输技术研究重点实验室
• 发布日期:2012-07-20

### Computational Analysis of Hydraulic Transmission Performance in Two-phase Flow Centrifugal Pump

ZHANG Yuliang;LI Yi;CUI Baoling;ZHU Zuchao

1. The State Key Lab of Fluid Power Transmission and Control, Zhejiang University The Province Key Lab of Fluid Transmission Technology, Zhejiang Sci-Tech University
• Published:2012-07-20

Abstract: To explore the hydraulic performance and abrasion characteristic of a solid-liquid two-phase flow centrifugal pump, the three-dimensional incompressible two-phase flow are numerically calculated based on algebraic slip mixture model (ASMM) under steady condition, wherein the interaction between impeller and casing is accomplished by frozen rotor method. An optimal relative position between impeller and volute is identified by means of a comparison of head between the estimate and the experimental observation, meanwhile the accuracy of numerical methods applied is clarified. The predicted results indicate that the particle property affects the hydraulic performance from severe to slight in the following order, namely particle volume fraction, density and diameter. With increasing particle diameter, volume fraction and density, the predicted heads are decreased, the total efficiency is generally decreased as well, but it reaches a maximum when the particle volume fraction is 10%. A double-shear sheet jet-wake flow structure, in which the blade-to-blade relative velocity profile is with two peaks, presents at the impeller exit near the volute tongue. In general, the suction sides of blades are subject to much more severe abrasion than the pressure sides. The particle volume fraction has a remarked effect on abrasion of blades, but the density effect is slight. Moreover, the particle diameter seems to affect on abrasion on the blade suction sides rather than on the pressure sides.