Capillary rogue waves
Fluid Dynamics
2010-03-15 v1
Abstract
We report the first observation of extreme wave events (rogue waves) in parametrically driven capillary waves. Rogue waves are observed above a certain threshold in forcing. Above this threshold, frequency spectra broaden and develop exponential tails. For the first time we present evidence of strong four-wave coupling in non-linear waves (high tricoherence), which points to modulation instability as the main mechanism in rogue waves. The generation of rogue waves is identified as the onset of a distinct tail in the probability density function of the wave heights. Their probability is higher than expected from the measured wave background.
Cite
@article{arxiv.1003.0478,
title = {Capillary rogue waves},
author = {M. Shats and H. Punzmann and H. Xia},
journal= {arXiv preprint arXiv:1003.0478},
year = {2010}
}
Comments
4 pages, 5 figures