A two-grid method with backtracking for the mixed Stokes/Darcy model

IF 3.8 2区数学 Q1 MATHEMATICS

Journal of Numerical Mathematics Pub Date : 2020-04-25 DOI:10.1515/jnma-2020-0001

Guangzhi Du, Liyun Zuo

引用次数: 12

Abstract

Abstract In this paper, a two-grid method with backtracking is proposed and investigated for the mixed Stokes/Darcy system which describes a fluid flow coupled with a porous media flow. Based on the classical two-grid method [15], a coarse mesh correction is carried out to derive optimal error bounds for the velocity field and the piezometric head in L2 norm. Finally, results of numerical experiments are provided to support the theoretical results.

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混合Stokes/Darcy模型的双网格回溯法

本文提出并研究了描述流体与多孔介质耦合流动的混合Stokes/Darcy系统的带回溯的双网格方法。基于经典的两网格法[15]，进行粗网格校正，得到速度场和测压头在L2范数下的最优误差界。最后，给出了数值实验结果来支持理论结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Numerical Mathematics 数学-数学

CiteScore

5.90

自引率

3.30%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Numerical Mathematics (formerly East-West Journal of Numerical Mathematics) contains high-quality papers featuring contemporary research in all areas of Numerical Mathematics. This includes the development, analysis, and implementation of new and innovative methods in Numerical Linear Algebra, Numerical Analysis, Optimal Control/Optimization, and Scientific Computing. The journal will also publish applications-oriented papers with significant mathematical content in computational fluid dynamics and other areas of computational engineering, finance, and life sciences.