Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.114502
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Funding
- UK NERC [NE/I01229X/1]
- Engineering and Physical Sciences Research Council [GR/T09507/01] Funding Source: researchfish
- Natural Environment Research Council [NE/I01229X/1] Funding Source: researchfish
- NERC [NE/I01229X/1] Funding Source: UKRI
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We consider nonlinear evolution of a random wave field under gusty forcing, fluctuating around a constant mean. Here the classical wave turbulence theory that assumes a proximity to stationarity is not applicable. We show by direct numerical simulation that the self-similarity of wave field evolution survives under fluctuating forcing. The wave field statistical characteristics averaged over fluctuations of forcing evolve as if there were a certain constant effective wind. The results justify the use of the kinetic equations with forcing averaged over gusts as a good first approximation.
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