Analysis of an Embedded Discontinuous Galerkin Method with Implicit-Explicit Time-Marching for Convection-Diffusion Problems

Analysis of an Embedded Discontinuous Galerkin Method with Implicit-Explicit Time-Marching for Convection-Diffusion Problems

Year:    2017

International Journal of Numerical Analysis and Modeling, Vol. 14 (2017), Iss. 4-5 : pp. 477–499

Abstract

In this paper, we analyze implicit-explicit (IMEX) Runge-Kutta (RK) time discretization methods for solving linear convection-diffusion equations. The diffusion operator is treated implicitly via the embedded discontinuous Galerkin (EDG) method and the convection operator explicitly via the upwinding discontinuous Galerkin method.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2017-IJNAM-10045

International Journal of Numerical Analysis and Modeling, Vol. 14 (2017), Iss. 4-5 : pp. 477–499

Published online:    2017-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    23

Keywords:    Embedded discontinuous Galerkin method upwinding discontinuous Galerkin method implicit-explicit Runge-Kutta time-marching scheme convection-diffusion equation stability error estimate energy method.