Journal article

Extreme waves in random crossing seas: Laboratory experiments and numerical simulations

A Toffoli, EM Bitner-Gregersen, AR Osborne, M Serio, J Monbaliu, M Onorato

Geophysical Research Letters | AMER GEOPHYSICAL UNION | Published : 2011

Abstract

We present an experimental and numerical investigation on the statistical properties of the surface elevation in crossing sea conditions. Experiments are performed in a very large wave basin (70 m × 50 m × 3 m) and numerical results are obtained using a higher order method for solving the Euler equations. Both experimental and numerical results indicate that the number of extreme events depends on the angle between the two interacting systems. This outcome is supported by recent theoretical investigations which have highlighted that the instability of wave packets may be triggered by the nonlinear interactions between coexisting, non-collinear wave systems. Copyright © 2011 by the American G..

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Grants

Awarded by European Community


Awarded by E.U.


Awarded by Woodside Energy Ltd


Funding Acknowledgements

Experiments were supported by the European Community's Sixth Framework Programme through the grant to the budget of the Integrated Infrastructure Initiative HYDROLAB III, contract 022441 (RII3). The E. U. project EXTREME SEAS ( contract SCP8-GA-2009-234175) is acknowledged. A. T. was funded by E.U. project SEAMOCS (MRTN-CT-2005-019374). Financial support of the Australian Research Council and Woodside Energy Ltd through the grant LP0883888 is also acknowledged. A.R. O. is funded by O.N.R. and Army Corps of Engineers.