Observation of strongly non-Gaussian statistics for random sea surface gravity waves in wave flume experiments (Articolo in rivista)

Type
Label
  • Observation of strongly non-Gaussian statistics for random sea surface gravity waves in wave flume experiments (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevE.70.067302 (literal)
Alternative label
  • M Onorato; A R Osborne; M Serio; L Cavaleri; C Brandini; C T Stansberg (2004)
    Observation of strongly non-Gaussian statistics for random sea surface gravity waves in wave flume experiments
    in Physical review. E, Statistical, nonlinear and soft matter physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M Onorato; A R Osborne; M Serio; L Cavaleri; C Brandini; C T Stansberg (literal)
Pagina inizio
  • 067302-1 (literal)
Pagina fine
  • 067302-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevE.70.067302 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 70 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a) Dipartimento di Fisica Generale, Università di Torino, Via Pietro Giuria 1, 10125 Torino, Italy b) CNR ISMAR, S. Polo 1364, 30125 Venezia, Italy c) CNR Ibimet - LaMMA, Via Madonna del Piano, 50019 Sesto Fiorentino, Italy d) Norwegian Marine Technology Research Institute A.S (Marintek), P.O. Box 4125 Valentinlyst, N-7450 Trondheim, Norway (literal)
Titolo
  • Observation of strongly non-Gaussian statistics for random sea surface gravity waves in wave flume experiments (literal)
Abstract
  • We study random surface gravity wave fields and address the formation of large-amplitude waves in a laboratory environment. Experiments are performed in one of the largest wave tank facilities in the world. We present experimental evidence that the tail of the probability density function for wave height strongly depends on the Benjamin-Feir index (BFI)--i.e., the ratio between wave steepness and spectral bandwidth. While for a small BFI the probability density functions obtained experimentally are consistent with the Rayleigh distribution, for a large BFI the Rayleigh distribution clearly underestimates the probability of large events. These results confirm experimentally the fact that large-amplitude waves in random spectra may result from the modulational instability. (literal)
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