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The effects of reflection coefficient of the harbour sidewall on the performance of floating breakwaters
Authors:Ghassan Elchahal  Rafic Younes  Pascal Lafon
Institution:aUniversity of Technology of Troyes, 12 Rue marie Curie, Troyes 10010, France;bLebanese University, Rafic Harriri Campus, Beirut, Lebanon
Abstract:This paper studies the interaction of linear water waves with a moored floating breakwater with a leeward boundary composed from a vertical wall. This describes a real modelling for the case of ports in contrary to the problems of unbounded domains. It involves the application of a partial reflection boundary condition for this sidewall. In fact, the partial reflection problem in practical application is of great importance in the design of a harbour or breakwater and mainly for short waves. The reflection coefficient of the harbour boundary (sidewall) plays an important role in modifying the performance of the floating breakwater. Moreover, it reduces the resonant peaks appearing inside the ports due to the energy accumulation in an enclosed domain. The effects of the variation of structural parameters of the breakwater on the transmitted wave height are discussed in details for various values of partial reflection.
Keywords:Diffraction–  radiation  Floating breakwater  Partial reflective sidewall  Linear waves
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