Author(s)

R. Silva & L.J. Losada

Abstract

A numerical model to predict wave forces on permeable breakwaters R. Silva* & LJ. Losada* * Institute de Ingenierfa, UN AM. Cd. Universit aria, ^pc/o. fo.9W 70-^72, 04J70MCX/CO, D.R, M^x/co. email: rodo@quetzai iingen. unam.mx * Ocean & Coastal Research Group, Universidad de Cantahria, Dpto. de Ciencias y Tecnicas del Agua y del Medio Ambiente, Avda. de los Castros s/n. Santander 39005, Spain. email: inigo@puerhpl.unican.es A numerical model to calculate forces on submerged permeable breakwa- ters is presented. A modified mild slope equation is used to evaluate the kinematics of the flow inside and outside the structure. Velocities are the input for Morison type equations, which are considered as an input for a stability model. 1 Introduction Submerged breakwaters have been constructed in coastal zones for shoreline protection or to prevent beach erosion. A model describing wave transfor- mation over submerged breakwaters is a fundamental tool in coastal design. Several numerical

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