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作者:

Wang, Gang (Wang, Gang.) | Wang, Feng (Wang, Feng.) | Chen, Long (Chen, Long.) | He, Yinnian (He, Yinnian.)

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EI Scopus SCIE

摘要:

This paper presents a weak virtual element method on general meshes for the Stokes-Darcy problem with the Beavers-Joseph-Saffman interface condition. The velocity is discretized by the H(div) virtual element. The pressure is approximated by discontinuous piecewise polynomials. Besides, a polynomial space on the element faces is introduced to approximate the tangential trace of the velocity in the Stokes equations. The velocity on the discrete level is exactly divergence free and thus the exact mass conservation is preserved in the discretization. The well-posedness of the discrete problem is proved and an a priori error estimate is derived that implies the error for the velocity in a suitable norm does not depend on the pressure. A series of numerical experiments are reported to illustrate the performance of the method. (C) 2018 Elsevier B.V. All rights reserved.

关键词:

Beavers-Joseph-Saffman condition Divergence free General meshes Pressure-robustness Stokes-Darcy problem

作者机构:

  • [ 1 ] [Wang, Gang]Xi An Jiao Tong Univ, Sch Math & Stat, Xian 710049, Shaanxi, Peoples R China
  • [ 2 ] [He, Yinnian]Xi An Jiao Tong Univ, Sch Math & Stat, Xian 710049, Shaanxi, Peoples R China
  • [ 3 ] [Wang, Feng]Nanjing Normal Univ, Sch Math Sci, Jiangsu Key Lab NSLSCS, Nanjing 210023, Jiangsu, Peoples R China
  • [ 4 ] [Chen, Long]Univ Calif Irvine, Dept Math, Irvine, CA 92697 USA
  • [ 5 ] [Chen, Long]Beijing Univ Technol, Beijing Inst Sci & Engn Comp, Beijing 100124, Peoples R China

通讯作者信息:

  • [Chen, Long]Univ Calif Irvine, Dept Math, Irvine, CA 92697 USA

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来源 :

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING

ISSN: 0045-7825

年份: 2019

卷: 344

页码: 998-1020

7 . 2 0 0

JCR@2022

ESI学科: COMPUTER SCIENCE;

ESI高被引阀值:58

JCR分区:1

被引次数:

WoS核心集被引频次: 37

SCOPUS被引频次: 32

ESI高被引论文在榜: 0 展开所有

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