上海大学学报(自然科学版) ›› 2011, Vol. 17 ›› Issue (5): 653-656.doi: 10.3969/j.issn.1007-2861.2011.05.015

• 数理化科学 • 上一篇    下一篇

轴流泵模型汽蚀特性的数值模拟

余运超,张伟,陈红勋   

  1. 上海大学 上海市应用数学和力学研究所,上海 200072
  • 收稿日期:2010-01-08 出版日期:2011-10-26 发布日期:2011-10-26
  • 通讯作者: 陈红勋(1962~),男,研究员,博士生导师,博士,研究方向为水动力学、水力机械理论. E-mail:chenhx@shu.edu.cn E-mail:chenhx@shu.edu.cn
  • 基金资助:

    上海市重点学科建设资助项目(Y0103)

Numerical Simulation of Cavitation Behavior of Axial Pump Model

YU Yun-chao,ZHANG Wei,CHEN Hong-xun   

  1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
  • Received:2010-01-08 Online:2011-10-26 Published:2011-10-26

摘要: 利用ANSYS CFX11.0软件,采用标准k-ε湍流模式封闭雷诺应力项,使用匀相多相流模型和Zwart-Gerber-Belamri空化模型对轴流泵模型的汽蚀特性进行三维定常数值模拟,计算得到的流量-必需汽蚀余量(net positive suction head,NPSHr)曲线与试验结果趋势一致.另外,分析了工况和NPSH对轴流泵汽蚀特性以及泵内汽蚀形态的影响.

关键词: 多相流, 汽蚀, 数值模拟, 轴流泵

Abstract: Using ANSYS CFX11.0, this paper conducts full three-dimensional numerical simulations of the cavitation behavior of an axial pump with turbulence model of standard k-ε, homogeneous multiphase model, and Zwart-Gerber-Belamri cavitation model. The head performances of cavitation of an axial pump are obtained. Simulated performance of the axial pump agrees with the measured data. Location of cavitation and evolution of cavity in the axial pump and the relation between the cavitation behavior and performance of axial pump under the different operations are analyzed.

Key words: axial pump, cavitation, multiphase flow, numerical simulation

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