Modelling wave attenuation by submerged resonators Available to Purchase

A system of mathematical models for linear wave propagation in a wave duct in the presence of submerged structures was developed and applied to study the dynamic interaction of the structures and the wave field. The presence of the structures and their dynamic coupling with the propagating waves was properly modelled and parameterised. Submerged structures of tubular form, double-peaked submerged structures and highly porous structures were tested. The phenomenon of resonance was revealed under certain conditions (when the structure width was of the order of half the wave length), resulting in a considerable increase of the efficiency of the structure in attenuating the incoming waves. The model produced satisfactory agreement with experiments performed in laboratory flumes.