Influence of wind forcing on modulation and breaking of one-dimensional deep-water wave groups

Alina Galchenko*, Alexander V. Babanin, Dmitry Chalikov, I. R. Young, Brian K. Haus

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    Evolution of nonlinear wave groups to breaking under wind forcing was studied by means of a fully nonlinear numerical model and in a laboratory experiment. Dependence of distance to breaking and modulation depth (height ratio of the highest and the lowest waves in a group) on wind forcing was described. It was shown that in the presence of a certain wind forcing both distance to breaking and modulation depth decrease; the latter signifies slowing down of the instability growth. It was also shown that wind forcing significantly reduces the energy loss in a single breaking event.

    Original languageEnglish
    Pages (from-to)928-939
    Number of pages12
    JournalJournal of Physical Oceanography
    Volume42
    Issue number6
    DOIs
    Publication statusPublished - Jun 2012

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