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

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Title: Influence of wind forcing on modulation and breaking of one-dimensional deep-water wave groups
Author(s): Galchenko, Alina; Babanin, Alexander V.; Chalikov, Dmitry; Young, I. R.; Haus, Brian K.
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.
Publication type: Journal article
Research centre: Swinburne University of Technology
Source: Journal of Physical Oceanography, Vol. 42, no. 6 (Jun 2012), pp. 928-939
Publication year: 2012
FOR Code(s): 0405 Oceanography
Keyword(s): Instability; Oceanic waves; Wave breaking; Wind waves
Publisher: American Meteorological Society
ISSN: 0022-3670
Publisher URL: http://dx.doi.org/10.1175/jpo-d-11-083.1
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