Wave-Induced Mean Magnitudes in Permeable Submerged Breakwaters
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 127, Issue 1
Abstract
The influence of wave reflection and energy dissipation by breaking and by porous flow induced by a permeable submerged structure on second-order mean quantities such as mass flux, energy flux, radiation stress, and mean water level is analyzed. For this purpose, analytical expressions for those mean quantities in terms of the shape functions are obtained. The dependence of those quantities on the incident wave characteristics, structure geometry, and permeable material characteristics is modeled, extending the writers' previous work including wave breaking. Two models for regular waves are presented: a 2D model to be applied to submerged trapezoidal breakwaters and a 3D model for submerged permeable rectangular breakwaters. Both models are able to reproduce experimental wave height transformation as well as mean water level variations along the wave flume with reasonable accuracy. Results give useful information for engineering applications of wave height evolution and set-up and set-down evolution in the vicinity of the submerged permeable structure.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 127 • Issue 1 • February 2001
Pages: 7 - 15
History
Received: Aug 13, 1998
Published online: Feb 1, 2001
Published in print: Feb 2001
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