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J. Ocean Eng. Technol. 2010;24(1):116-122.    

Wave Breaking Characteristics due to Shape and Plane Arrangement of the Submerged Breakwaters
Lee Woo-Dong,Hur Dong-Soo,Huh Jung-Won
Department of Civil Engineering Nagoya University,Department of Ocean Civil Engineering(Institute of Marine Industry) Gyeongsang National University,Department of Ocean Civil Engineering Chonnam National University
잠제 제원 및 평면배치에 따른 쇄파특성
이우동,허동수,허정원
나고야대학 공학연구과 사회기반공학,국립경상대학교 해양과학대학 해양토목공학과(해양산업연구소),전남대학교 건설.환경공학부 해양토목공학
Copyright © 2010 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Key Words: Shape of submerged breakwater, Plane arrangement of submerged breakwater, Wave breaking point, 3-D flow, LES-WASS-3D
핵심용어: 잠제의 형상, 잠제의 평면배치, 쇄파점, 3차원 흐름, 3차원수치해석기법
Abstract
The aim of this study is to examine the effects of shape and plane arrangement of submerged breakwaters on 3-D wave breaking characteristics over them. First, the numerical model, which is able to consider the flow through a porous medium with inertial, laminar, and turbulent resistance terms, i.e. simulate directly WAve Structure Seabed/Sandy beach interaction, and can determine the eddy viscosity with a LES turbulent model in a 3-Dimensional wave field (LES-WASS-3D), has been validated by a comparison with Goda's equation for breaking wave heights. And then, using the numerical results, the wave breaking points over the crest of submerged breakwaters have been examined in relation to the shape and plane arrangement of submerged breakwaters. Moreover, the wave height distribution and upper flow around submerged breakwaters have been also discussed, as well as the distribution of the wave breaking points over the beach.


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