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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 24, issue 2
Nonlin. Processes Geophys., 24, 157–165, 2017
https://doi.org/10.5194/npg-24-157-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Waves in media with pre-existing or emerging inhomogeneities...

Nonlin. Processes Geophys., 24, 157–165, 2017
https://doi.org/10.5194/npg-24-157-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 28 Mar 2017

Research article | 28 Mar 2017

Subharmonic resonant excitation of edge waves by breaking surface waves

Nizar Abcha et al.
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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.
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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.
Parametric excitation of edge waves with a frequency 2 times less than the frequency of surface...
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