Observation of Intermittency in Wave Turbulence | Zendy

Éric Falcon | Zendy; S. Fauve | Zendy; C. Laroche | Zendy

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Observation of Intermittency in Wave Turbulence

Author(s) -

Éric Falcon,

S. Fauve,

C. Laroche

Publication year - 2007

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.98.154501

Subject(s) - intermittency , turbulence , physics , flatness (cosmology) , amplitude , wave turbulence , statistical physics , scaling , classical mechanics , mechanics , optics , mathematics , quantum mechanics , geometry , cosmology

new version to Phys. Rev. Lett.International audienceWe report the observation of intermittency in gravity-capillary wave turbulence on the surface of mercury. We measure the temporal fluctuations of surface wave amplitude at a given location. We show that the shape of the probability density function of the local slope increments of the surface waves strongly changes across the time scales. The related structure functions and the flatness are found to be power laws of the time scale on more than one decade. The exponents of these power laws increase nonlinearly with the order of the structure function. All these observations show the intermittent nature of the increments of the local slope in wave turbulence. We discuss the possible origin of this intermittency

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