Abstract
A possible explanation is proposed for the occurrence of freak waves, which are defined as waves with larger heights than expected based on the Rayleigh distribution. The suggested cause is due to nonlinearities of superposition of waves which are not accounted for in the Rayleigh distribution. When two waves combine, if their fundamental components add linearly, it can be shown that the combined wave height increases by more than the sum of the fundamental components. The argument does not address the correctness of linear addition of the fundamental components nor does it include energy closure. An example is presented illustrating the concept.
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References
Sand, S.E., Ottesen Hansen, N.E., Klinting, P., Gudmestad, O.T., and Sterndorf, M.J. (1989) ‘Freak wave kinematics’, Proceedings, NATO Advanced Research Workshop on Water Wave Kinematics, Molde, Norway.
Stansberg, C.T. (1989) ‘Extreme waves in laboratory generated irregular wave trains’, Proceedings, NATO Advanced Research Workshop on Water Wave Kinematics, Molde, Norway.
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© 1990 Kluwer Academic Publisher
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Dean, R.G. (1990). Freak Waves: a Possible Explanation. In: Tørum, A., Gudmestad, O.T. (eds) Water Wave Kinematics. NATO ASI Series, vol 178. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0531-3_39
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DOI: https://doi.org/10.1007/978-94-009-0531-3_39
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6725-6
Online ISBN: 978-94-009-0531-3
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