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A Study of the Wave Control Characteristics of the Permeable Submerged Breakwater using VOF Method in Irregular Wave Fields  

Kim Do Sam (한국해양대학교 공과대학 토목환경시스템공학부)
Lee Kwang Ho (나고야대학교 대학원 공학연구과)
Yoo Hyun Sang (한국해양대학교 공과대학 토목환경시스템공학부)
Kim Chang Hoon (한국해양대학교 공과대학 토목환경시스템공학부)
Son Byoung Kyu (국립수산과학원)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.16, no.3, 2004 , pp. 121-129 More about this Journal
Abstract
The different types of coastal souctures have been constructed for the protection of coastal region from the incident waves. Among them. the permeable submerged breakwater has been widely used as a wave dissipater and sediment transport controller because of its excellent advantages in scenery effects, construction efficiency and environment aspects. This study numerically investigated the characteristics of wave energy variations and transmission coefficient at the rear of the permeable submerged breakwater installed in the irregular wave field. To analyze it's performance numerically, a two-dimensional numerical wave flume based on VOF method was used. A frequency spectral analysis showed that the spectral peak moved to the short-period in the one-row submerged breakwater, and the wave energy was distributed evenly for the whole period in the two-row submerged breakwater in the case of breaking on the submerged breakwater. The spectral peak was shown to be converged within the significant wave period at the rear of the permeable submerged breakwater in the case of non-breaking conditions. From the result of transmission coefficients analysis. it was confirmed that a considerable quantity of wave energy was transmitted to the rear of the permeable submerged breakwater in the case of non-breaking rather than breaking.
Keywords
permeable submerged breakwater; VOF method; irregular waves; requency spectrum; transmission coefficient;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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