Waves at the sea surface generated by a flow over an underwater obstacle

We study wave perturbations appearing at the surface of a two-layer fluid flowing around an underwater obstacle in the lower layer of the fluid. The obstacle is modeled as a point source. A class of asymptotic solutions was obtained that demonstrate that realistic conditions of the open sea and the...

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Published in:Oceanology (Washington. 1965) 2009-06, Vol.49 (3), p.320-326
Main Authors: Korchagin, N. N., Savin, A. S., Savina, E. O.
Format: Article
Language:English
Subjects:
Boundary conditions
Earth and Environmental Science
Earth Sciences
Field tests
Localization
Marine
Marine Physics
Oceanography
Underwater
Velocity
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container_title Oceanology (Washington. 1965)
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creator Korchagin, N. N.
Savin, A. S.
Savina, E. O.
description We study wave perturbations appearing at the surface of a two-layer fluid flowing around an underwater obstacle in the lower layer of the fluid. The obstacle is modeled as a point source. A class of asymptotic solutions was obtained that demonstrate that realistic conditions of the open sea and the given parameters of the source in the neighborhood of the source of hydrodynamic perturbations allow for the formation of two types of surface waves. The waves of the first type only slightly depend on the stratification, and, in the conditions of the real sea, they are almost not observed. The characteristics of the second type of waves were repeatedly recorded in field experiments during radar and optical monitoring of the sea surface.
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subjects Boundary conditions
Earth and Environmental Science
Earth Sciences
Field tests
Localization
Marine
Marine Physics
Oceanography
Underwater
Velocity
title Waves at the sea surface generated by a flow over an underwater obstacle
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