A Discontinuous Galerkin Method by Patch Reconstruction for Convection-Diffusion Problems

A Discontinuous Galerkin Method by Patch Reconstruction for Convection-Diffusion Problems

Year:    2020

Author:    Zhiyuan Sun, Jun Liu, Pei Wang

Advances in Applied Mathematics and Mechanics, Vol. 12 (2020), Iss. 3 : pp. 729–747

Abstract

In this article, we apply the discontinuous Galerkin method by patch reconstruction for solving convection-diffusion problems. The proposed method is highly efficient that it uses only one degree of freedom per element to achieve higher order approximation. It also enjoys the implementation flexibility on the general polygonal meshes. A priori error estimates of energy norm is devised. Numerical examples are presented to illustrate the theoretical results and the efficiency of the method.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aamm.OA-2019-0193

Advances in Applied Mathematics and Mechanics, Vol. 12 (2020), Iss. 3 : pp. 729–747

Published online:    2020-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    19

Keywords:    Convection-diffusion problem polygonal mesh discontinuous Galerkin method patch reconstruction.

Author Details

Zhiyuan Sun

Jun Liu

Pei Wang

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