Articles | Volume 24, issue 2
Research article
28 Mar 2017
Research article |  | 28 Mar 2017

Subharmonic resonant excitation of edge waves by breaking surface waves

Nizar Abcha, Tonglei Zhang, Alexander Ezersky, Efim Pelinovsky, and Ira Didenkulova

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Cited articles

Akylas, T. R.: Large-scale modulations of edge waves, J. Fluid Mech., 132, 197–208, 1983.
Blondeaux, P. and Vittori, G.: The nonlinear excitation of synchronous edge waves by a monochromatic wave normally approaching a plane beach, J. Fluid Mech., 301, 251–268, 1995.
Buchan, S. J. and Pritchard, W. G.: Experimental observations of edge waves, J. Fluid Mech., 288, 1–35, 1995.
Cerda, E. A. and Tirapegui, E. L.: Faraday's instability in viscous fluid, J. Fluid Mech., 368, 195–228, 1998.
Coco, G. and Murray, B. A.: Pattern in the sand: form forcing templates to self-organization, Geomorphology, 91, 271–290, 2007.
Short summary
Parametric excitation of edge waves with a frequency 2 times less than the frequency of surface waves propagating perpendicular to the inclined bottom are investigated in laboratory experiments. The domain of instability on the plane of surface wave parameters (amplitude–frequency) is found. The subcritical instability is observed in the system of parametrically excited edge waves. It is shown that breaking of surface waves initiates turbulent effects and can suppress the parametric generation.