数学物理学报

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非定常Stokes问题的矩形Crouzeix-Raviart型各向异性非协调元变网格方法

石东洋; 张熠然   

  1. 郑州大学数学系 郑州 450052
  • 收稿日期:2004-09-18 修回日期:2006-01-10 出版日期:2006-10-25 发布日期:2006-10-25
  • 通讯作者: 石东洋
  • 基金资助:
    国家自然科学基金(10371113)资助

Rectangular Crouzeix-raviart Anisotropic Finite Element Method for Nonstationary Stokes Problem with Moving Grids

Shi Dongyang; Zhang Yiran   

  1. Department of Mathematics, Zhengzhou University, Zhengzhou 450052
  • Received:2004-09-18 Revised:2006-01-10 Online:2006-10-25 Published:2006-10-25
  • Contact: Shi Dongyang

摘要: 该文给出了关于速度-压力型非定常Stokes问题的一个 矩形 Crouzeix-Raviart 型各向异性非协调有限元的变网格逼近格式.并用一些新的技巧和方法导出了各向异性网格下的有关速度和压力的最优误差估计.

关键词: Stokes 问题, 矩形Crouzeix-Raviart 型元, 各向异性, 变网格, 最优误差估计

Abstract:

This paper is devoted to the study of rectangular Crouzeix-Raviart anisotropic finite element method with moving grids for velocity-pressure mixed formulations of the nonstationary Stokes problem in 2-D. Anisotropic error estimations of the velocity and the pressure are derived based on some novel techniques.

Key words: Stokes problem, Anisotropy, Rectangular Crouzeix-Raviart typ element, Moving grids, Optimal error estimate

中图分类号: 

  • 65N30