Optimal Error Estimate of the Penalty FEM for the Stationary Conduction-Convection Problems

Optimal Error Estimate of the Penalty FEM for the Stationary Conduction-Convection Problems

Year:    2018

Author:    Yanfang Lei, Hongtao Wang, Zhiyong Si

Advances in Applied Mathematics and Mechanics, Vol. 10 (2018), Iss. 3 : pp. 767–784

Abstract

In this paper, a penalty finite element method is presented for the two dimensional stationary conduction-convection problems. The existence and the convergence of the penalty stationary conduction-convection formulation are shown. An optimal error estimate of the numerical velocity, pressure and temperature is provided for the penalty finite element method when the parameters $є$ and $h$ are sufficiently small. Our numerical experiments show that our method is effective and our analysis is right.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aamm.OA-2017-0103

Advances in Applied Mathematics and Mechanics, Vol. 10 (2018), Iss. 3 : pp. 767–784

Published online:    2018-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    18

Keywords:    Conduction-convection problems penalty finite element method existence and convergence error estimates.

Author Details

Yanfang Lei

Hongtao Wang

Zhiyong Si