Chapter
Dec 31, 2015
Nonlinear Wave Transformation Over a Submerged Permeable Breakwater
Authors: Eric C. Cruz, Masahiko Isobe, and Akira WatanabeAuthor Affiliations
Publication: Coastal Engineering 1992
Abstract
A set of nonlinear vertically integrated equations has been derived to predict the transformation of waves over a submerged permeable breakwater on a one-dimensional topography. The square of the relative water depth is assumed to be of the same order as the wave height to water depth ratio and a set of second-order governing equations which are equivalent to the Boussinesq equations is derived. The equations have been applied to simulate non-breaking and breaking wave transformations obtained from laboratory experiments, in the latter incorporating a model for breaking wave energy dissipation. When breaking is nonexistent on the breakwater, the wave height as well as the wave profile is well predicted. However, the disintegrating character of the transmitted waves is weakly predicted. For breaking transformation, the wave profiles are predicted well prior to the lee of the breakwater where disintegration occurs.
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Copyright
© 1993 American Society of Civil Engineers.
History
Published online: Dec 31, 2015
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ASCE Technical Topics:
- Breaking waves
- Breakwaters
- Coastal protection structures
- Continuum mechanics
- Dynamics (solid mechanics)
- Engineering mechanics
- Fluid mechanics
- Hydraulic engineering
- Hydraulic properties
- Hydrologic engineering
- Materials characterization
- Materials engineering
- Nonlinear waves
- Ocean waves
- Permeability (material)
- Solid mechanics
- Structural engineering
- Structures (by type)
- Submerging
- Underwater structures
- Water and water resources
- Water waves
- Waves (fluid mechanics)
- Waves (mechanics)
Authors
Affiliations
Eric C. Cruz
Graduate Student, Department of Civil Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113, Japan
Masahiko Isobe
Professor, Department of Civil Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113, Japan
Akira Watanabe
Professor, Department of Civil Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113, Japan
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