On the Central Relaxing Schemes I: Single Conservation Laws

On the Central Relaxing Schemes I: Single Conservation Laws

Year:    2000

Author:    Hua-Zhong Tang

Journal of Computational Mathematics, Vol. 18 (2000), Iss. 3 : pp. 313–324

Abstract

In this first paper we present a central relaxing scheme for scalar conservation laws, based on using the local relaxation approximation. Our scheme is obtained without using linear or nonlinear Riemann solvers. A cell entropy inequality is studied for the semidiscrete central relaxing scheme, and a second order MUSCL scheme is shown to be TVD in the zero relaxation limit. The next paper will extend the central relaxing scheme to multi-dimensional systems of conservation laws in curvilinear coordinates, including numerical experiments for 1D and 2D problems.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2000-JCM-9045

Journal of Computational Mathematics, Vol. 18 (2000), Iss. 3 : pp. 313–324

Published online:    2000-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords:    Hyperbolic conservation laws the relaxing scheme TVD cell entropy inequality.

Author Details

Hua-Zhong Tang