A total variation diminishing high resolution scheme for nonlinear conservation laws

	A total variation diminishing high resolution scheme for nonlinear conservation laws
Computational Methods for Differential Equations
مقاله 6، دوره 6، شماره 4، دی 2018، صفحه 456-470 اصل مقاله (315.61 K)
نوع مقاله: Research Paper
نویسندگان
Javad Farzi^* ؛ Fayyaz Khodadosti
Sahand university Of Technology, P.O. Box 51335-1996, Tabriz, Iran
چکیده
In this paper we propose a novel high resolution scheme for scalar nonlinear hyperbolic conservation laws. The aim of high resolution schemes is to provide at least second order accuracy in smooth regions and produce sharp solutions near the discontinuities. We prove that the proposed scheme that is derived by utilizing an appropriate flux limiter is nonlinear stable in the sense of total variation diminishing (TVD). The TVD schemes are robust against the spurious oscillations and preserve the sharpness of the solution near the sharp discontinuities and shocks. We also, prove the positivity and maximum-principle properties for this scheme. The numerical results are presented for both of the advection and Burger’s equation. A comparison of numerical results with some classical limiter functions is also provided.
کلیدواژه‌ها
High resolution schemes؛ Flux limiter؛ Total variation diminishing؛ Nonlinear conservation laws

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