Modulational instabilities and breaking strength for deep-water wave groups

Alina Galchenko, Alexander V. Babanin, Dmitry Chalikov, I. R. Young, Tai Wen Hsu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

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 andmodulation 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.

Original languageEnglish
Pages (from-to)2313-2324
Number of pages12
JournalJournal of Physical Oceanography
Volume40
Issue number10
DOIs
Publication statusPublished - Oct 2010
Externally publishedYes

Fingerprint

Dive into the research topics of 'Modulational instabilities and breaking strength for deep-water wave groups'. Together they form a unique fingerprint.

Cite this