计算物理 ›› 2008, Vol. 25 ›› Issue (1): 51-57.

• 研究论文 • 上一篇    下一篇

一种求解可压缩Navier-Stokes方程的隐式迭代时间推进方法

高慧, 周晓君   

  1. 中国石油大学石油工程学院, 山东 东营 257061
  • 收稿日期:2006-09-15 修回日期:2007-03-18 出版日期:2008-01-25 发布日期:2008-01-25
  • 作者简介:高慧(1974-),女,河南濮阳,博士,从事计算流体力学方面的研究,山东省东营市中国石油大学石油工程学院257061.

Implicit Iteration Time-advancement Scheme for Compressible Navier-Stokes Equations

GAO Hui, ZHOU Xiaojun   

  1. College of Petroleum Engineering, China University of Petroleum, Donying 257061, China
  • Received:2006-09-15 Revised:2007-03-18 Online:2008-01-25 Published:2008-01-25

摘要: 针对有壁面边界的可压缩流动问题,提出与基于非等距网格的高精度紧致型差分格式相结合的简化隐式迭代时间推进法,建立求解可压缩Navier-Stokes方程的直接数值模拟方法,提高了计算效率.应用该方法,直接数值模拟两种有壁面边界的二维可压缩流动问题,即可压缩平板边界层流动和可压缩槽道流动.

关键词: 可压缩流动, 边界层, 隐式迭代法, Navier-Stokes方程

Abstract: According to the characteristics of compressible flows with wall boundary conditions, a simplified iterative-implicit timeadvancement scheme combined with high order compact difference schemes based on a non-uniform grid system is proposed to solve compressible Navier-Stokes equations, An iteration convergence criterion is given. The computational efficiency is greatly improved. The new scheme is applied to simulate two-dimensional compressible flat-plat laminar boundary layer flows and two-dimensional compressible channel flows.

Key words: compressible flow, boundary layer, implicit iteration, Navier-Stokes equations

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