| HAL : hal-00623620, version 2 |
| Fiche détaillée | Récupérer au format |
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| Versions disponibles : | v1 (14-09-2011) | v2 (09-08-2012) |
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| Splitting methods for the nonlocal Fowler equation |
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| Afaf Bouharguane 1Rémi Carles 2 |
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| (14/09/2011) |
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| We consider a nonlocal scalar conservation law proposed by Andrew C. Fowler to describe the dynamics of dunes, and we develop a numerical procedure based on splitting methods to approximate its solutions. We begin by proving the convergence of the well-known Lie formula, which is an approximation of the exact solution of order one in time. We next use the split-step Fourier method to approximate the continuous problem using the fast Fourier transform and the finite difference method. Our numerical experiments confirm the theoretical results. |
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| 1 : | Laboratoire Jean Kuntzmann (LJK) |
| CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Institut Polytechnique de Grenoble - Grenoble Institute of Technology | |
| 2 : | Institut de Mathématiques et de Modélisation de Montpellier (I3M) |
| CNRS : UMR5149 – Université Montpellier II - Sciences et techniques | |
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| Domaine | : | Mathématiques/Analyse numérique |
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| Nonlocal operato – numerical time integration – operator splitting – split-step Fourier method – stability – error analysis |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00623620, version 2 | |
| http://hal.archives-ouvertes.fr/hal-00623620 | |
| oai:hal.archives-ouvertes.fr:hal-00623620 | |
| Contributeur : Rémi Carles | |
| Soumis le : Lundi 6 Août 2012, 16:43:07 | |
| Dernière modification le : Jeudi 9 Août 2012, 10:59:43 | |