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Conditional second-order short-crested water waves applied to extreme wave episodes

Published online by Cambridge University Press:  02 December 2005

JØRGEN JUNCHER JENSEN
JØRGEN JUNCHER JENSEN
Affiliation:
Department of Mechanical Engineering, Technical University of Denmark, Nils Koppels Allé, Building 403, DK 2800 Kgs. Lyngby, Denmark
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Abstract

A derivation of the mean second-order short-crested wave pattern and associated wave kinematics, conditional on a given magnitude of the wave crest, is presented. The analysis is based on the second-order Sharma and Dean finite-water wave theory. A comparison with a measured extreme wave profile, the Draupner New Year Wave, shows a good agreement in the mean, indicating that this second-order wave can be a good identifier of the shape and occurrence of extreme wave events. A discussion on its use as an initial condition for a fully nonlinear three-dimensional surface wave analysis is given.

Type
Papers
Information
Journal of Fluid Mechanics , Volume 545 , 25 December 2005 , pp. 29 - 40
Copyright
© 2005 Cambridge University Press

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