Numerical Analysis for Wave Propagation and Sediment Transport with Coastal Vegetation |
Lee Seong-Dae |
Dept. of Civil Engineering College of Engineering Halla Univ. |
연안식생에 의한 표사이동 특성에 관한 수치해석 |
이성대 |
한라대학교 공과대학 토목공학과 |
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© 2007 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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Keywords:
Wave propagation, Sediment transport, Bathymetric change, Coastal vegetation, Wave attenuation, Numerical model |
핵심용어:
파랑전파, 표사이동, 해저지형변동, 연안식생, 파랑감쇠, 수치모형 |
Abstract |
The environmental value of coastal vegetation has been widely recognized. Coastal vegetation such as reed forests and seaweed performs several useful functions, including maintaining water quality, supporting fish (and, thus, fisheries), protecting beaches and land from wave attack, stabilizing sea beds and providing scenic value. However, studies on the physical and numerical process of wave propagation, sediment transport and bathymetric change are few and far between compared to those on the hydrodynamic roles of coastal vegetation. In general, vegetation flourishing along the coastal areas attenuates the incident waves through momentum exchange between stagnated water mass in the vegetated area and rapid mass in the un-vegetated area. This study develops a numerical model for describing the wave attenuation and sediment transport in a wave channel in a vegetation area. By comparing these results, the effects of vegetation properties, wave properties and model parameters are clarified. |
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