Wave Interactions with Perforated Breakwater
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 126, Issue 5
Abstract
The present paper describes a theoretical analysis and an associated numerical model used to assess the performance of a breakwater consisting of a perforated front wall, an impermeable back wall, and a rock-filled core. The numerical method is based on an eigenfunction expansion and utilizes a boundary condition at the perforated wall that accounts for energy dissipation. The numerical model is validated by comparison with previous numerical studies of the limiting cases of a permeable seawall and a perforated breakwater with an impermeable back wall. Relevant numerical results that are presented relate to the reflection coefficient, the wave runup, and the wave force. The effects of porosity, breakwater geometry, and relative wavelength are discussed; the choice of suitable parameters needed to model the permeability of the breakwater is described; and an example application to a practical design situation is given.
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Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 126 • Issue 5 • September 2000
Pages: 229 - 235
History
Received: Jan 20, 1999
Published online: Sep 1, 2000
Published in print: Sep 2000
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