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Surface and Internal Waves Scattering by Partial Barriers in a Two-Layer Fluid  

Kumar, P.Suresh (Coastal Engineering Research Department, Korea Ocean Research and Development Institute)
Oh, Young-Min (Coastal Engineering Research Department, Korea Ocean Research and Development Institute)
Cho, Won-Chul (Department of Civil and Environmental Engineering, Chung-Ang Univ.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.20, no.1, 2008 , pp. 25-33 More about this Journal
Abstract
Water waves are generated mainly by winds in open seas and large lakes. They carry a significant amount of energy from winds into near-shore region. Thereby they significantly contribute to the regional hydrodynamics and transport process, producing strong physical, geological and environmental impact on coastal environment and on human activities in the coastal area. Furthermore an accurate prediction of the hydrodynamic effects due to wave interaction with offshore structures is a necessary requirement in the design, protection and operation of such structures. In the present paper surface and internal waves scattering by thin surface-piercing and bottom-standing vertical barriers in a two-layer fluid is analyzed in two-dimensions within the context of linearized theory of water waves. The reflection coefficients for surface and internal waves are computed and analyzed in various cases. It is found that wave reflection is strongly dependent on the interface location and the fluid density ratio apart from the barrier geometry.
Keywords
Partial Barriers; Internal Waves; Surface Waves; Reflection; Orthogonal Relation;
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