计算物理 ›› 2001, Vol. 18 ›› Issue (2): 125-128.

• 论文 • 上一篇    下一篇

半圆域上自然对流的数值模拟

王旭1, 谷传纲2   

  1. 1. 空军工程学院, 陕西 西安 710038;
    2. 西安交通大学, 陕西 西安 710049
  • 收稿日期:1999-05-21 修回日期:2000-01-20 出版日期:2001-03-25 发布日期:2001-03-25
  • 作者简介:王旭(1957-),男,陕西武功,副教授,博士,从事计算流体力学方面的研究.

NUMERICAL CALCULATION OF NATURAL CONVECTION FLOWS ON SEMICIRCULAR CAVITY

WANG Xu1, GU Chuan-gang2   

  1. 1. Basic Courses Department, Air Force Institute of Engineering, Xi'an 710038, P R China;
    2. Energy and Power Engineering Department, Xi'an Jiaotong University, Xi'an 710049, P R China
  • Received:1999-05-21 Revised:2000-01-20 Online:2001-03-25 Published:2001-03-25

摘要: 对半圆域上的自然对流采用控制体有限元方法进行数值模拟.采用非结构三角形网格与质量加权迎风格式对计算域及控制方程进行离散,对压力离散方程采用波前法求解,保证了对所有Ra≤107时迭代过程的收敛性.

关键词: 半圆域, 非结构网格, 自然对流, 大Rayleigh数, 波前法

Abstract: It presents details of the results of natural convection flows for Ra≤107 on semicircular cavity.The control volume finite element method based on unstructured grids and mass weighted upwind scheme is employed to discretize governing equations, and the fronts method is employed to solve the pressure discretization equations.For all of Ra≤105, the present results are very agreement with the previous literature, and for Ra=106、107, the iterations have not run into the difficulty of convergence.

Key words: semicircular cavity, unstructured grids, natural convection, high-Ranumbers, fronts method

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