Abstract
A Boussinesq equation model was connected with parabolic mild-slope equation model in order to relieve their burden of calculation. The method of connection was that first, the wave motions, refraction, shoaling deformation and diffraction in relatively deep water were calculated based on the parabolic mild-slope equation, and then the wave motions in shallow water were calculated by the Boussinesq equation. It was demonstrated that the connection of two models was efficient for a wide area calculation in practical use.Moreover, in order to verify the Boussinesq equation model for the calculation of wave motion around a offshore barrier in shallow water, laboratory experiments were made with offshore detached breakwater. The wave height and depth-averaged velocity distributions were measured in detail and compared with results of numerical simulation.
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