Diffraction by a Gap in an Infinite Permeable Breakwater
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 128, Issue 1
Abstract
The linearized theory of water waves is used to study the diffraction of an incident wave by a gap in a permeable breakwater. Under the assumption that the wavelength is much greater than the thickness, the breakwater is replaced by a thin barrier and a suitable boundary condition applied on the barrier to model the permeability. A new Green’s function is used in an application of Green’s theorem to obtain an integral equation that is solved numerically to obtain the flow field. An approximate solution valid for large gaps is also given. Results are presented to illustrate the effects of permeability and changes in the angle of wave incidence.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 128 • Issue 1 • January 2002
Pages: 2 - 9
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Dec 19, 2000
Accepted: Jul 27, 2001
Published online: Jan 1, 2002
Published in print: Jan 2002
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