Numerical Analysis of the Performance of Perforated Coastal Structures under Irregular Wave Conditions SCIE SCOPUS

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Title
Numerical Analysis of the Performance of Perforated Coastal Structures under Irregular Wave Conditions
Author(s)
Chun, Insik; Lim, Hak Soo; Shim, Jae Seol; Park, Kyung Soo
KIOST Author(s)
Lim, Hak Soo(임학수)
Publication Year
2015-09
Abstract
A numerical and experimental study was performed to investigate the wave control characteristics of general perforated harbor structures under irregular wave conditions. A numerical analysis using a boundary element method was applied to each of the regular wave components composing the irregular wave, and the results were linearly superimposed under linear wave assumptions. The nonlinear friction term at the perforated walls was first linearized using the root mean square values of horizontal velocity components obtained through an iterative calculation. Hydraulic experiments were also performed for three different transmissive structures, and the results were compared with those of the numerical analysis. The numerical and experimental values of reflection and transmission coefficients generally agreed within an accuracy of 0.1. The numerical analysis was also applied to a nontransmissive structure with a single wave chamber from a previous experiment and showed good agreement with those experimental results.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2426
DOI
10.2112/JCOASTRES-D-14-00057.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, v.31, no.5, pp.1159 - 1169, 2015
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
REFLECTION
Keywords
Boundary element method; nonlinear friction force; reflection coefficient; transmission coefficient
Type
Article
Language
English
Document Type
Article
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Related Researcher
Research Interests

Coastal Disaster Prevention,Coastal Erosion Research,Coastal Ocean Modeling,연안재해방재,연안침식연구,연안해양모델링

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