Title
Nonconforming polynomial mixed finite element for the Brinkman problem over quadrilateral meshes.
Abstract
This work provides a new mixed finite element method for the Brinkman problem over arbitrary convex quadrilateral meshes. The velocity is approximated by piecewise polynomial element space which is H(div)-nonconforming, and the pressure is approximated by piecewise constant. We give the convergence analysis of our element, and especially show the robustness with respect to the Darcy limit. Moreover, via a discrete de Rham complex, a higher-order approximation error term is obtained for incompressible flow. Numerical examples verify our theoretical findings.
Year
DOI
Venue
2018
10.1016/j.camwa.2018.05.027
Computers & Mathematics with Applications
Keywords
Field
DocType
Nonconforming finite element,Polynomial,Quadrilateral meshes,Uniform convergence,Discrete de Rham complex
Convergence (routing),Polynomial,Mathematical analysis,Regular polygon,Finite element method,Incompressible flow,Mathematics,Approximation error,Piecewise,Mixed finite element method
Journal
Volume
Issue
ISSN
76
4
0898-1221
Citations 
PageRank 
References 
0
0.34
12
Authors
4
Name
Order
Citations
PageRank
Xinchen Zhou173.53
Zhaoliang Meng233.53
Xin Fan300.68
Zhongxuan Luo428051.48