计算物理 ›› 2006, Vol. 23 ›› Issue (1): 10-18.

• 论文 • 上一篇    下一篇

Navier-Stokes方程的线性化微分求积法

李晨, 吴雄华   

  1. 同济大学应用数学系, 上海 200092
  • 收稿日期:2004-07-20 修回日期:2005-03-15 出版日期:2006-01-25 发布日期:2006-01-25
  • 作者简介:李晨(1980-),Female,Heilongjiang,Ph.D Candidate,numerical methods for P.D.E.
  • 基金资助:
    Supported by the National Natural Science Foundation of China(10171078)

A Linearized Differential Quadrature Method for Navier-Stokes Equations in the Streamfunction and Vorticity Form

LI Chen, WU Xiong-hua   

  1. Department of Applied Mathematics, Tongji University, Shanghai 200092, China
  • Received:2004-07-20 Revised:2005-03-15 Online:2006-01-25 Published:2006-01-25
  • Supported by:
    Supported by the National Natural Science Foundation of China(10171078)

摘要: 提出一种新的线性化微分求积法(LDQM),将这种目的应用到流函数和涡量形式的Navier-Stokes方程.通过LDQM,非线性方程很容易被解出来,并且容易处理压力的边界条件.为检验本目的,计算了两个数值算例.

关键词: Navier-Stokes方程, 微分求积法, 线性化方法

Abstract: A new linearized differential quadrature method(LDQM) is applied to the unsteady Navier-Stokes equations in the stream-function and vorticity form. With LDQM nonlinear equations are solved easily. And the boundary conditions of ω can be expressed as a function of ψ. To verify the method, three examples are treated. Numerical results show that the method is of high accuracy and good convergence.

Key words: Navier-Stokes equation, differential quadrature method, linearized

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