Large-time asymptotics, vanishing viscosity and numerics for 1-D scalar conservation laws
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- by Liviu I. Ignat, Alejandro Pozo and Enrique Zuazua;
- Math. Comp. 84 (2015), 1633-1662
- DOI: https://doi.org/10.1090/S0025-5718-2014-02915-3
- Published electronically: December 11, 2014
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Abstract:
In this paper we analyze the large time asymptotic behavior of the discrete solutions of numerical approximation schemes for scalar hyperbolic conservation laws. We consider three monotone conservative schemes that are consistent with the one-sided Lipschitz condition (OSLC): Lax-Friedrichs, Engquist-Osher and Godunov. We mainly focus on the inviscid Burgers equation, for which we know that the large time behavior is of a self-similar nature, described by a two-parameter family of N-waves. We prove that, at the numerical level, the large time dynamics depends on the amount of numerical viscosity introduced by the scheme: while Engquist-Osher and Godunov yield the same N-wave asymptotic behavior, the Lax-Friedrichs scheme leads to viscous self-similar profiles, corresponding to the asymptotic behavior of the solutions of the continuous viscous Burgers equation. The same problem is analyzed in the context of self-similar variables that lead to a better numerical performance but to the same dichotomy on the asymptotic behavior: N-waves versus viscous waves. We also give some hints to extend the results to more general fluxes. Some numerical experiments illustrating the accuracy of the results of the paper are also presented.References
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Bibliographic Information
- Liviu I. Ignat
- Affiliation: Institute of Mathematics “Simion Stoilow” of the Romanian Academy, 21 Calea Grivitei Street, 010702 Bucharest, Romania — and — Faculty of Mathematics and Computer Science, University of Bucharest, 14 Academiei Street, 010014 Bucharest, Romania — and —BCAM - Basque Center for Applied Mathematics, Alameda de Mazarredo 14, 48009 Bilbao, Basque Country, Spain
- MR Author ID: 758688
- ORCID: 0000-0002-8748-2086
- Email: liviu.ignat@gmail.com
- Alejandro Pozo
- Affiliation: BCAM, Basque Center for Applied Mathematics, Alameda de Mazarredo 14, E-48009 Bilbao, Basque Country, Spain
- Email: pozo@bcamath.org
- Enrique Zuazua
- Affiliation: BCAM, Basque Center for Applied Mathematics, Alameda de Mazarredo 14, 48009 Bilbao, Basque Country, Spain — and — Ikerbasque, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Basque Country, Spain
- MR Author ID: 187655
- Email: zuazua@bcamath.org
- Received by editor(s): June 19, 2013
- Received by editor(s) in revised form: November 8, 2013
- Published electronically: December 11, 2014
- Additional Notes: The first author was partially supported by Grant PN-II-ID-PCE-2012-4-0021 of the Romanian National Authority for Scientific Research, CNCS-UEFISCDI
The second author was supported by the Grant BFI-2010-339
This work was supported by the Grant MTM2011-29306-C02-00 of the MICINN (Spain), the Advanced Grant FP7-246775 of the European Research Council Executive Agency and the Grant PI2010-04 of the Basque Government - © Copyright 2014 American Mathematical Society
- Journal: Math. Comp. 84 (2015), 1633-1662
- MSC (2010): Primary 35B40, 35L65, 65M12
- DOI: https://doi.org/10.1090/S0025-5718-2014-02915-3
- MathSciNet review: 3335886