Waves and currents interacting in a 3d field

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ConferenceInternational Conference on Ship and Ocean Technology, 18-20 December 2002, Kharagpur, India
Subjectwave-current field; current-free wave; interaction
AbstractThe present paper reports on a study of the interaction of a current-free monochromatic surface wave field with a wave-free uniform current field in a three-dimensional flow frame. The formulation of the wave current field is done under the assumption of irrotational and inviscid flow. We have developed the three dimensional expressions describing the characteristics of the combined flow in terms of mass, momentum and energy transport. These equations are found efficient to describe the sought-for combined wave-current field. The parameters describing the wave-current field after the interaction are the surface disturbance amplitude and length, mean water depth, mean current-like parameter and direction of the combined flow, which would be calculated from a set of equations that satisfy conservation of mean mass, momentum and energy flux and a dispersion relation on the free surface before and after the interaction. The results are shown in terms of relative changes in surface disturbance heights and lengths, current-like parameters and final directions obtained for the combined wave-current field with respect to current-free wave and wave-free current pre-interaction parameters.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number6037
NPARC number8895967
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Record identifierfc8ce194-5392-46f6-a2f8-833955aba37f
Record created2009-04-22
Record modified2016-05-09
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