计算物理 ›› 1999, Vol. 16 ›› Issue (6): 561-567.

• 论文 •    下一篇

定常Stokes问题的边界积分方程的高精度求积方法与外推

吕涛1, 黄晋2   

  1. 1. 中国科学院成都计算机应用研究所, 610041;
    2. 成都市第七中学, 610041
  • 收稿日期:1998-09-18 修回日期:1999-05-11 出版日期:1999-11-25 发布日期:1999-11-25
  • 作者简介:吕涛,男,56,研究员,成都237信箱,610041
  • 基金资助:
    国家自然科学基金资助项目

Quadrature methods with high accuracy and their extrapolations for solving boundary integral equations of stead stokes problem

Lü Tao1, Huang Jing2   

  1. 1. Institute of Chengdu Computer Applications, Academia Sinica, 610041;
    2. No.7 middle school of Chengdu, 610041
  • Received:1998-09-18 Revised:1999-05-11 Online:1999-11-25 Published:1999-11-25

摘要: 借助Side-Israeli 的求积公式,给出解Stokes 问题的边界积分方程的机械求积方法。此方法精度较高、计算量少,近似解的误差有奇数幂的渐近展开,这表明使用Richardson 外推能够改善近似解的精度阶。

关键词: Stokes问题, 边界积分方程, 求积方法, 外推

Abstract: By means of Side Israeli's quadrature rules,quadrature methods for solving boundary integral equations of steady Stokes problem are presented,which possess high accuracy and low computing complexities.Moreover,the asymptotic expansions with the odd powers of the errors occur which can improve the accuracy order of the approximations by Richardson's extrapolation.

Key words: Stokes problem, boundary integral equation, quadrature method, extrapolation

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