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Local Discontinuous Galerkin Methods for High-Order Time-Dependent Partial Differential Equations

Local Discontinuous Galerkin Methods for High-Order Time-Dependent Partial Differential Equations
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Year:    2010

Author:    Yan Xu, Chi-Wang Shu

Communications in Computational Physics, Vol. 7 (2010), Iss. 1 : pp. 1–46

Abstract

Discontinuous Galerkin (DG) methods are a class of finite element methods using discontinuous basis functions, which are usually chosen as piecewise polynomials. Since the basis functions can be discontinuous, these methods have the flexibility which is not shared by typical finite element methods, such as the allowance of arbitrary triangulation with hanging nodes, less restriction in changing the polynomial degrees in each element independent of that in the neighbors (p adaptivity), and local data structure and the resulting high parallel efficiency. In this paper, we give a general review of the local DG (LDG) methods for solving high-order time-dependent partial differential equations (PDEs). The important ingredient of the design of LDG schemes, namely the adequate choice of numerical fluxes, is highlighted. Some of the applications of the LDG methods for high-order time-dependent PDEs are also be discussed.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.2009.09.023

Communications in Computational Physics, Vol. 7 (2010), Iss. 1 : pp. 1–46

Published online:    2010-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    46

Keywords:   

Author Details

Yan Xu

Chi-Wang Shu

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