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On Stable Runge–Kutta Methods for Solving Hyperbolic Equations by the Discontinuous Galerkin Method

On Stable Runge–Kutta Methods for Solving Hyperbolic Equations by the Discontinuous Galerkin Method We consider Runge–Kutta methods whose stability domain includes a disk of maximumdiameter for given number of stages and order. These methods are used to solve initial valueproblems obtained by approximating hyperbolic systems with the use of the discontinuousGalerkin method. Two three-stage methods in the class in question are proposed for which, usingtest problems for the transport equation and for the system of gasdynamic equations, we studythe possibility to maintain the stability and monotonicity of the numerical solution with themaximum possible time steps. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Differential Equations Springer Journals

On Stable Runge–Kutta Methods for Solving Hyperbolic Equations by the Discontinuous Galerkin Method

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References (23)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2021
ISSN
0012-2661
eISSN
1608-3083
DOI
10.1134/s0012266121070089
Publisher site
See Article on Publisher Site

Abstract

We consider Runge–Kutta methods whose stability domain includes a disk of maximumdiameter for given number of stages and order. These methods are used to solve initial valueproblems obtained by approximating hyperbolic systems with the use of the discontinuousGalerkin method. Two three-stage methods in the class in question are proposed for which, usingtest problems for the transport equation and for the system of gasdynamic equations, we studythe possibility to maintain the stability and monotonicity of the numerical solution with themaximum possible time steps.

Journal

Differential EquationsSpringer Journals

Published: Jul 1, 2021

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