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Regular version of the site

Article

Numerical simulation of random bimodal wave systems in the KdV framework

European Journal of Mechanics - B/Fluids. 2019. Vol. 78. P. 21-31.
Диденкулова (Шургалина) Е. Г., Slunyaev A., Pelinovsky E.

Direct numerical simulations of irregular unidirectional nonlinear wave evolution are performed within the framework of the Korteweg–de Vries equation for bimodal wave spectra model cases. The additional wave system co-existence effect on the evolution of the wave statistical characteristics and spectral shapes, and also on the attained equilibrium state is studied. The concerned problem describes, for example, the interaction between wind waves and swell in shallow seas. It is next demonstrated that a low-frequency spectral component yields more asymmetric waves with more extreme statistical properties.