• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 2003, Vol. 39 ›› Issue (7): 18-22.

• 论文 • 上一篇    下一篇

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无堵塞离心泵内部三维固液两相湍流场数值模拟

袁寿其;李昳;何朝辉   

  1. 江苏大学;浙江工程学院;浙江省机电设计研究院
  • 发布日期:2003-07-15

3-D CALCULATION OF SOLID-LIQUID TWO-PHASE TURBULENT FLOW WITHIN A NON-CLOGGING CENTRIFUGAL PUMP

Yuan Shouqi;Li Yi;He Zhaohui   

  1. Jiangsu University Zhejiang Institute of Science and Technology Zhejiang Institute of Mechanical and Electronic Engineering
  • Published:2003-07-15

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摘要： 针对无堵塞泵叶轮内部流场的特点，选用颗粒拟流体的k-?-Ap模型模拟两相湍流，基于SIMPLEC算法建立压力修正方程来满足连续性方程和动量方程间的耦合关系，并由此建立了两相湍流的时均控制方程组，采用GEMCHIP算法编制程序对叶轮内流进行模拟，并实现了模拟结果的可视化。模拟结果揭示了无堵塞泵叶轮内部流动的某些特征：叶轮前盖板—吸力面处存在射流—尾迹区，流体相与颗粒相之间有速度滑移，且滑移值随流道逐渐降低。

关键词: 两相流, 数值模拟, 湍流, 无堵塞泵

Abstract: A k-e-Ap model is used to simulate two-phase turbulent flow, and pressure-correction equation is achieved to couple the continuity equation and the momentum equations according to SIMPLEC. Thus time-averaged governing equations of which are developed. On the basis of the GEMCHIP algorithm, a program to calculate the internal flow within the pump impellers is designed, and the calculating results are displayed into some figures. The simulated results exhibit: there exist a jet-wake structure around the shroud-suction side area, and a relative velocity slip between the solid and liquid which de-creases gradually along the passage.

Key words: Non-clogging pump, Numerical simulation, Turbulence flow, Two-phase flow

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