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Probability distributions of surface gravity waves during spectral changes

- Hervé Socquet-Juglard, K. Dysthe, K. Trulsen, H. Krogstad, Jingdong Liu
- Physics
- 25 October 2005

Simulations have been performed with a fairly narrow band numerical gravity wave model (higher-order nls type) and a computational domain of dimensions $128\times 128$ typical wavelengths. The… Expand

Statistical properties of mechanically generated surface gravity waves: a laboratory experiment in a three-dimensional wave basin

- M. Onorato, L. Cavaleri, +9 authors K. Trulsen
- Geology
- Journal of Fluid Mechanics
- 1 May 2009

A wave basin experiment has been performed in the MARINTEK laboratories, in one of the largest existing three-dimensional wave tanks in the world. The aim of the experiment is to investigate the… Expand

A modified nonlinear Schrödinger equation for broader bandwidth gravity waves on deep water

- K. Trulsen, K. Dysthe
- Physics
- 1 November 1996

Abstract The modified nonlinear Schrodinger equation of Dysthe [ Proc. Roy. Soc. Lond. Ser. A, 369 , 105–114 (1979)] is extended by relaxing the narrow bandwidth constraint to make it more suitable… Expand

NOTE ON BREATHER TYPE SOLUTIONS OF THE NLS AS MODELS FOR FREAK-WAVES

- K. Dysthe, K. Trulsen
- Physics
- 1999

Some breather type solutions of the NLS equation have been suggested by Henderson et al (to appear in Wave Motion) as models for a class of 'freak' wave events seen in 2D-simulations on surface… Expand

Evolution of a narrow-band spectrum of random surface gravity waves

- K. Dysthe, K. Trulsen, H. Krogstad, Hervé Socquet-Juglard
- Physics
- Journal of Fluid Mechanics
- 1 March 2003

Numerical simulations of the evolution of gravity wave spectra of fairly narrow bandwidth have been performed both for two and three dimensions. Simulations using the nonlinear Schrödinger (NLS)… Expand

Evolution of weakly nonlinear random directional waves: laboratory experiments and numerical simulations

- A. Toffoli, O. Gramstad, K. Trulsen, J. Monbaliu, E. Bitner-Gregersen, M. Onorato
- Physics
- Journal of Fluid Mechanics
- 15 October 2010

Nonlinear modulational instability of wavepackets is one of the mechanisms responsible for the formation of large-amplitude water waves. Here, mechanically generated waves in a three-dimensional… Expand

On weakly nonlinear modulation of waves on deep water

- K. Trulsen, I. Kliakhandler, K. Dysthe, M. Velarde
- Physics
- 6 September 2000

We propose a new approach for modeling weakly nonlinear waves, based on enhancing truncated amplitude equations with exact linear dispersion. Our example is based on the nonlinear Schrodinger (NLS)… Expand

Frequency downshift in three-dimensional wave trains in a deep basin

- K. Trulsen, K. Dysthe
- Physics
- 10 December 1997

The conservative evolution of weakly nonlinear narrow-banded gravity
waves in deep water is investigated numerically with a modified nonlinear Schrodinger
equation, for application to wide wave… Expand

Laboratory evidence of freak waves provoked by non-uniform bathymetry

- K. Trulsen, Huiming Zeng, O. Gramstad
- Physics
- 5 September 2012

We show experimental evidence that as relatively long unidirectional waves propagate over a sloping bottom, from a deeper to a shallower domain, there can be a local maximum of kurtosis and skewness… Expand

Statistical properties of directional ocean waves: the role of the modulational instability in the formation of extreme events.

- M. Onorato, T. Waseda, +11 authors K. Trulsen
- Physics, Medicine
- Physical review letters
- 20 March 2009

We discuss two independent, large scale experiments performed in two wave basins of different dimensions in which the statistics of the surface wave elevation are addressed. Both facilities are… Expand

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