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- Title
- Modulational instabilities and breaking strength for deep-water wave groups
- Author(s)
- Galchenko, Alina; Babanin, Alexander V.; Chalikov, Dmitry; Young, I. R.; Hsu, Tai-Wen
- Abstract
- Progression of nonlinear wave groups to breaking was studied numerically and experimentally. Evolution of such wave group parameters as a function of distance to breaking and modulation depth—the height ratio of the highest and the lowest waves in the group—was described. Numerical model results demonstrated good agreement with experimental results in describing the behavior of the distance to breaking and modulation depth as functions of initial wave steepness. It was shown that energy loss appears to be a function of the modulation depth at the breaking onset. Energy loss grows with modulation depth up to a certain threshold of the latter. It was also shown that breaking probability for wave groups with modulation depth below 2.2 is very low.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology
- Source
- Journal of Physical Oceanography, Vol. 40, no. 10 (Oct 2010), pp. 2313-2324
- Publication year
- 2010
- FOR Code(s)
- 0405 Oceanography
- Keyword(s)
- Wave properties
- Publisher
- American Meteorological Society
- ISSN
- 0022-3670
- Publisher URL
- http://dx.doi.org/10.1175/2010JPO4405.1
- Copyright
- Copyright © 2010 American Meteorological Society. The published version of the paper is reproduced here in accordance with the copyright policy of the publisher.
- Research Projects
-
Oceanic conditions within extreme tropical cyclones, Australian Research Council grant number LP0883888
- Full text
- Peer reviewed
