Fluctuations of Energy Flux in Wave Turbulence

Éric Falcon, Sébastien Aumaître, Claudio Falcón, Claude Laroche, and Stéphan Fauve
Phys. Rev. Lett. 100, 064503 – Published 15 February 2008

Abstract

We report that the power driving gravity and capillary wave turbulence in a statistically stationary regime displays fluctuations much stronger than its mean value. We show that its probability density function (PDF) has a most probable value close to zero and involves two asymmetric roughly exponential tails. We understand the qualitative features of the PDF using a simple Langevin-type model.

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  • Received 12 August 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.064503

©2008 American Physical Society

Authors & Affiliations

Éric Falcon1, Sébastien Aumaître2, Claudio Falcón3, Claude Laroche1,3, and Stéphan Fauve3

  • 1Matière et Systèmes Complexes, Université Paris Diderot-Paris 7, CNRS, 75 013 Paris, France
  • 2Service de Physique de l’Etat Condensé, DSM, CEA-Saclay, CNRS, 91191 Gif-sur-Yvette, France
  • 3Laboratoire de Physique Statistique, École Normale Supérieure, CNRS, 24, rue Lhomond, 75 005 Paris, France

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Vol. 100, Iss. 6 — 15 February 2008

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