Analysis Of The Wave-flow Interaction With
Submerged Breakwaters
Author(s)
A. C. Neves, F. Veloso Gomes & F. Taveira Pinto
Abstract
The use of submerged breakwaters against coastal erosion problems has some
advantages when compared, for example, with the use of similar emerged coastal
protection structures and for that reason their use in coastal protection is
becoming popular all over the world. Their effect in the wave field and
especially in the wave-induced velocities has been analysed by several authors
though there is still a lack of knowledge on the wave-flow interaction.
The aim of this study was to analyse the behaviour of submerged breakwaters
and especially the wave induced velocity field, which can have great impact in
the stability of the structures and in the sediment circulation.
Two-dimensional scaled physical tests were carried out in the Hydraulics
Laboratory wave tank of the University of Porto, in order to understand with
more accuracy the influence of the permeability and of the submergence of the
breakwaters in the wave-structure interaction. For that reason, tests were
performed with the same wave conditions (regular waves), with two different
models with the same geometry, one with permeable and one with impermeable
rough slopes, and with two water depths (leading to two different freeboards of
the structure).
Keywords: submerged breakwater, wave-flow interaction.
1 Introduction
Several investigations have been performed in relation to submerged
breakwaters. Although much is already known in what concerns to the stability
of these structures, it is believed that there is a lack of information about the
hydrodynamics in their vicinity, namely in the velocity field.
Keywords
submerged breakwater, wave-flow interaction.
Related Book
Other papers in this volume
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