Experiments on Spontaneous Modulation Instability in Hydrodynamics

Amin Chabchoub, Goëry Genty, John M. Dudley, Bertrand Kibler, Takuji Waseda

    Tutkimustuotos: KonferenssiartikkeliTieteellinenvertaisarvioitu

    7 Sitaatiot (Scopus)

    Abstrakti

    Modulation instability describes the exponential amplification of a weak perturbation on top of a plane wave background and it has been extensively studied in the context of weakly nonlinear evolution equations such as the nonlinear Schrödinger equation (NLSE). It has been further suggested as a possible generation mechanism of rogue waves in the oceans. Here, we report on an experimental laboratory study in which the modulation instability dynamics have been seeded by random noise, added to a Stokes wave. Similarly to experiments recently performed in Optics, we show that the development of such spontaneous modulation instability in a water wave tank leads to the emergence of highly localized structures that can be interpreted as analytical NLSE breathers. Numerical simulations show very good qualitative agreement with the laboratory experiments.
    AlkuperäiskieliEnglanti
    OtsikkoThe Proceedings of the Twenty-seventh (2017) International Ocean and Polar Engineering Conference
    KustantajaInternational Society of Offshore and Polar Engineers
    ISBN (elektroninen)978-1-880653-97-5
    TilaJulkaistu - 2017
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
    TapahtumaInternational Ocean and Polar Engineering Conference -
    Kesto: 1 tammik. 2000 → …

    Julkaisusarja

    NimiThe proceedings of the International Offshore and Polar Engineering Conference
    KustantajaISOPE
    ISSN (painettu)1098-6189
    ISSN (elektroninen)1555-1792

    Conference

    ConferenceInternational Ocean and Polar Engineering Conference
    Ajanjakso1/01/00 → …

    Julkaisufoorumi-taso

    • Jufo-taso 1

    Sormenjälki

    Sukella tutkimusaiheisiin 'Experiments on Spontaneous Modulation Instability in Hydrodynamics'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

    Siteeraa tätä