| Type de publication : |
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Preprint, Working Paper, Document sans référence, etc. |
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| Domaine : |
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Mathématiques/Equations aux dérivées partielles
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| Titre : |
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Approximate travelling wave solutions to the 2D Euler equation on the torus |
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| Auteur(s) : |
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Nicolas Crouseilles ( ) 1, 2, Erwan Faou () 3, 4 |
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| Laboratoire : |
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| Équipe de recherche : |
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Analyse numérique |
| Résumé : |
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We consider the two-dimensional Euler equation with periodic boundary conditions. We construct approximate solutions of this equation made of localized travelling profiles with compact support propagating over a stationary state depending on only one variable. The direction or propagation is orthogonal to this variable, and the support is concentrated around flat points of the stationary state. Under regularity assumptions, we prove that the approximation error can be made exponentially small with respect to the width of the support of the travelling wave. We illustrate this result by numerical simulations. |
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Langue du texte
intégral : |
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Anglais |
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Date de production,
écriture : |
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21/02/2011 |
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