Author(s): E. E. Kriezi; Th. V. Karambas; P. Prinos; C. Koutitas
Linked Author(s): Th.V. Karambas
Keywords: Floating breakwaters; Boussinesq equations; Transmission; Reflection
Abstract: The purpose of the present work is to investigate numerically the effects of floating breakwaters on wave propagation in shallow waters. Two cases are studied: (a) the floating body is fixed with a certain draft and (b) the floating body is allowed to move vertically (heave motion) A linear dispersion characteristic Boussinesq model is used for the description of the waves before and after the structure. Under the floating body the continuity equation is valid at the edges beneath the structure. The pressure beneath the breakwater is calculated with respect to the wave pressure, calculated from the wave model, at the edges of the structure. For a fixed floating body the pressure is considered to be linear. In the case of heave motion, the equation of motion is applied into the model in addition to the above mentioned equations for calculating the pressure, which has a parabolic function. Computed results are compared satisfactorily against analytical solutions and experimental measurements of other investigators.
Year: 2001