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

›› 2003, Vol. 39 ›› Issue (9): 49-51.

• 论文 • 上一篇    下一篇

扫码分享

轴流泵端壁间隙流动特性的数值研究

杨昌明;陈次昌;王金诺;宋文武;夏鹏飞   

  1. 西南交通大学工程研究所;四川工业学院;西南交通大学
  • 发布日期:2003-09-15

NUMERICAL STUDY FOR BEHAVIOR OF TIP CLEARANCE FLOW IN AXIAL-FLOW PUMP

Yang Changming;Chen Cichang;Wang Jinnuo;Song Wenwu;Xia Pengfei   

  1. Southwest Jiaotong University Sichuan University of Science and Technology
  • Published:2003-09-15

PDF

244

摘要： 基于N-S方程，标准 模型和SIMPLEC算法，在三种叶端间隙、三种工况条件下，对轴流泵端壁间隙流动进行了数值模拟。重点考察了叶端间隙流动对叶轮出口流场及性能的影响。数值结果表明，间隙增加，扬程下降，特别是越在小流量工况下越明显。

关键词: 间隙流动, 数值模拟, 轴流泵

Abstract: Three-dimensional tip clearance flow in axial-flow pump is simulated based on N-S equations, standard k –e turbulence model, and SIMPLEC method, with various tip clearances of blade and work conditions. The influence of clearance flow on flow fields and performance of the rotor is investigated emphatically. The numerical result shows increasing the tip clearance will reduce hydrostatic head, especially at small flow rate.

Key words: Axial-flow pump, Clearance flow, Numerical simulation

中图分类号: 

版权所有 © 2019 《机械工程学报》编辑部 | 京ICP备05055788号-30