Emergence of Peregrine solitons in integrable ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
Emergence of Peregrine solitons in integrable turbulence of deep water gravity waves
Auteur(s) :
Michel, Guillaume [Auteur]
Institut Jean Le Rond d'Alembert [DALEMBERT]
Modélisation, Propagation et Imagerie Acoustique [IJLRDA-MPIA]
Bonnefoy, Félicien [Auteur]
Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique [LHEEA]
Ducrozet, Guillaume [Auteur]
Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique [LHEEA]
Prabhudesai, Gaurav [Auteur]
Physique Non-Linéaire
Cazaubiel, Annette [Auteur]
Matière et Systèmes Complexes [MSC]
Copie, Francois [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Tikan, Alexey [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Suret, Pierre [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Randoux, Stephane [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Falcon, Eric [Auteur]
Matière et Systèmes Complexes [MSC]
Institut Jean Le Rond d'Alembert [DALEMBERT]
Modélisation, Propagation et Imagerie Acoustique [IJLRDA-MPIA]
Bonnefoy, Félicien [Auteur]
Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique [LHEEA]
Ducrozet, Guillaume [Auteur]
Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique [LHEEA]
Prabhudesai, Gaurav [Auteur]
Physique Non-Linéaire
Cazaubiel, Annette [Auteur]
Matière et Systèmes Complexes [MSC]
Copie, Francois [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Tikan, Alexey [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Suret, Pierre [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Randoux, Stephane [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Falcon, Eric [Auteur]
Matière et Systèmes Complexes [MSC]
Titre de la revue :
Physical Review Fluids
Pagination :
082801(R)
Éditeur :
American Physical Society
Date de publication :
2020
ISSN :
2469-990X
Discipline(s) HAL :
Physique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
Science non linéaire [physics]/Formation de Structures et Solitons [nlin.PS]
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
Science non linéaire [physics]/Formation de Structures et Solitons [nlin.PS]
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
Résumé en anglais : [en]
We study experimentally the early stages of integrable turbulence of unidirectional deep water gravity waves. By generating partially coherent waves in a 148 m long wave flume, we observe the emergence of high-amplitude ...
Lire la suite >We study experimentally the early stages of integrable turbulence of unidirectional deep water gravity waves. By generating partially coherent waves in a 148 m long wave flume, we observe the emergence of high-amplitude structures formed by nonlinear focusing, commonly referred to as rogue waves. This work confronts the experiment with two recent results obtained in the framework of the nonlinear Schrödinger equation (NLSE), namely that (i) these structures can be locally fitted by a Peregrine soliton and (ii) their emergence leaves a visible trace on the evolution of statistical parameters such as kurtosis. Although Peregrine solitons have been observed for almost ten years in experiments using a deterministic forcing, we report their first systematic study in hydrodynamics with a random forcing. We show that (i) yields accurate results as long as the wave steepness remains moderate, whereas (ii) is very robust and remains valid beyond the assumption of integrability. Numerical simulations of the NLSE and of the fully nonlinear dynamical equations are also performed to support these results.Lire moins >
Lire la suite >We study experimentally the early stages of integrable turbulence of unidirectional deep water gravity waves. By generating partially coherent waves in a 148 m long wave flume, we observe the emergence of high-amplitude structures formed by nonlinear focusing, commonly referred to as rogue waves. This work confronts the experiment with two recent results obtained in the framework of the nonlinear Schrödinger equation (NLSE), namely that (i) these structures can be locally fitted by a Peregrine soliton and (ii) their emergence leaves a visible trace on the evolution of statistical parameters such as kurtosis. Although Peregrine solitons have been observed for almost ten years in experiments using a deterministic forcing, we report their first systematic study in hydrodynamics with a random forcing. We show that (i) yields accurate results as long as the wave steepness remains moderate, whereas (ii) is very robust and remains valid beyond the assumption of integrability. Numerical simulations of the NLSE and of the fully nonlinear dynamical equations are also performed to support these results.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Projet ANR :
Source :
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