SOLITARY WAVE TRANSMISSION THROUGH POROUS BREAKWATERS

C. Vidal, M.A. Losada, R. Medina, J. Rubio

Abstract


A semi-empirical theory is formulated to predict wave reflection and transmission at a porous breakwater of rectangular cross section for normally incident solitary waves. The solution is based on the linearized form of the governing equations and on equivalent linearization of the friction loss in the porous structure. Experimental results of transmission coefficients are presented for a large range of incident wave amplitudes, with several gravel sizes, water depths and breakwater geometries. Experimental and theoretical results are compared and evaluated; the comparison shows satisfactory agreement for the transmission coefficient.

Keywords


breakwater; porous breakwater; wave transmission; solitary wave

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