计算物理 ›› 1998, Vol. 15 ›› Issue (1): 95-100.

• 论文 • 上一篇    下一篇

在非交错网格上求解非正交曲线坐标系下N-S方程

朱松林1, 王献孚2, 陆瑞松2   

  1. 1. 华中理工大学激光院, 武汉 430074;
    2. 武汉交通科技大学 430063
  • 收稿日期:1997-01-24 出版日期:1998-01-25 发布日期:1998-01-25
  • 作者简介:朱松林,男,35岁,博士后,博士,华中理工大学激光院

A NUMERICAL STUDY FOR N-S EQUATION IN ARBITRARY CURVILINEAR COORDINATES WITH NONSTAGGERED GRIDS

Zhu Songlin1, Wang Xianfu2, Lu Ruisong2   

  1. Wuhan Transportation University, Wuhan 430063
  • Received:1997-01-24 Online:1998-01-25 Published:1998-01-25

摘要: 介绍一种在非交错网格上,求解非正交曲线坐标系下的流动控制方程的方法。为解决在三维非正交曲线坐标系下采用非交错网格时所遇到的压力波动问题,将一种网格界面速度插值方法进行推广,并导出了相应的计算公式。运用所建立的方法对90°方截面弯管流动问题进行了数值模拟。结果是令人满意的,从而表明计算方法及所开发程序的可靠性。

关键词: N-S方程, 曲线坐标, 非交错网格, 弯管

Abstract: This paper presents numerical solution for governing equation of flows in curvilinear coordinate system with nonstaggered grids.In order to cure the zig zag variation of pressure,the cell-face velocity interpolation method is developed for solving the pressure-velocity-coupling problem,SIMPLER algorithm is used.With the overall methods present here,the flow in a 90° square duct is calculated.The results agree well with the experiment data.

Key words: N-S equation, curvilinear coordinate, nonstaggered grids, duct

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