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J. Ocean Eng. Technol. 2005;19(4):9-14.    

Submerged Porous Plate Wave Absorber
PARK W.T.;LEE S.H.;KEE S.T.;
Dept. of Civil Engineering, Seoul National University of Technology, Seoul, Korea;Dept. of Civil Engineering, Seoul National University of Technology, Seoul, Korea;Dept. of Civil Engineering, Seoul National University of Technology, Seoul, Korea;
© 2005 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Wave Absorber, Wave-Trapping, HoriZ0ntal Porous Plate, Standing Wave
Abstract
In the present paper, the wave absorbing performance of the fully submerged horizontal porous plates has been investigated, numerically and experimentally. The submerged porous system is composed of multi-layered horizontal porous plates that are clamped at the vertical setwall, which are slightly inclined and placed vertically, in parallel, with spacing. The hydrodynamic interaction of incident waves with the rigid porous multi-layered plates was formulated within the context of linear wave-body interaction theory and Darcy's law. In order to validate the effectiveness of the present computing code, the numerical results were compared with the analytical and experimental results. It is found that triple horizontal porous plates with slight inclination, if properly tuned for wave energy dissipation against the standing waves in front of the vertical wall, can have high performances in reducing the reflected wave amplitudes against the incident waves over a wide range of wave frequency.
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