A Numerical Simulation on Three-Dimensional Hydrodynamic Characteristics of Wave Height and Flow around Asymmetric Submerged Breakwaters

doi:2011.25.3.19

J. Ocean Eng. Technol. > Volume 25(3); 2011 > Article

J. Ocean Eng. Technol. 2011;25(3):19-27.
DOI: https://doi.org/10.5574/KSOE.2011.25.3.019

Lee Woo-Dong,Hur Dong-Soo,Suh Sung-Bu

Department of Civil Engineering Nagoya University,Department of Ocean Civil Engineering(Institute of Marine Industry) Gyeongsang National University,Department of Naval Architecture and Ocean Engineering Dong-Eui University

비대칭 잠제 주변의 파고 및 흐름의 3차원적인 수리특성에 관한 수치모의

이우동,허동수,서성부

나고야대학 공학연구과 사회기반공학,국립경상대학교 해양과학대학 해양토목공학과(해양산업연구소),동의대학교 조선해양공학과

Keywords: Asymmetric submerged breakwater, Mean water level, Circulation current, Mean flow, LES-WASS-3D

핵심용어: 비대칭 잠제, 평균수위, 순환류, 평균류, 3차원수치해석기법

Abstract

In case of constructing submerged breakwaters for the purpose of preventing coastal erosion, the number of submerged breakwaters, as well as their asymmetry is dependent on the field conditions. The aim of the present study was to examine the 3-D hydrodynamic characteristics (3-D wave field, wave height, mean water level, and mean flow) around the asymmetric submerged breakwaters using a 3-D numerical model, LES-WASS-3D, which was validated through a comparison with existing experimental data and showed fairly nice agreement. From the numerical results, the wave height, mean water level, and mean flow are discussed in relation with the variation in the breakwater length ratio.