Multidimensional Relaxation Approximations for Hyperbolic Systems of Conservation Laws

Multidimensional Relaxation Approximations for Hyperbolic Systems of Conservation Laws

Year:    2007

Author:    Mohammed Seaid

Journal of Computational Mathematics, Vol. 25 (2007), Iss. 4 : pp. 440–457

Abstract

We construct and implement a non-oscillatory relaxation scheme for multidimensional hyperbolic systems of conservation laws. The method transforms the nonlinear hyperbolic system to a semilinear model with a relaxation source term and linear characteristics which can be solved numerically without using either Riemann solver or linear iterations. To discretize the relaxation system we consider a high-resolution reconstruction in space and a TVD Runge-Kutta time integration. Detailed formulation of the scheme is given for problems in three space dimensions and numerical experiments are implemented in both scalar and system cases to show the effectiveness of the method.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2007-JCM-8703

Journal of Computational Mathematics, Vol. 25 (2007), Iss. 4 : pp. 440–457

Published online:    2007-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    18

Keywords:    Multidimensional hyperbolic systems Relaxation methods Non-oscillatory reconstructions Asymptotic-preserving schemes.

Author Details

Mohammed Seaid