수중 천퇴 인근에 설치된 해양구조물의 유체력 결정에 대한 고찰 KCI

DC Field Value Language
dc.contributor.author 전인식 -
dc.contributor.author 민인기 -
dc.contributor.author 심재설 -
dc.date.accessioned 2020-04-19T23:42:20Z -
dc.date.available 2020-04-19T23:42:20Z -
dc.date.created 2020-01-28 -
dc.date.issued 2007-04 -
dc.identifier.issn 1976-8192 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/1931 -
dc.description.abstract 파랑이 수중 천퇴부를 넘어 쇄파하는 경우 파고는 작게 형성되나 강한 이차적 흐름 (쇄파유도류)이 발생한다. 따라서, 임의의 해양구조물이 쇄파대에 위치할 경우에는 단순히 가시적인 파고에만 근거한 파력산정은 과소설계를 초래할 가능성이 있으며 구조물의 안정설계를 위해서는 쇄파유도류의 유속이 가미된 상태에서의 유체력을 정확히 산정하여 반영할 필요가 있다. 본 연구에서는 Boussinesq 방정식 모델을 이용하여 쇄파대내에서의 파고분포와 쇄파유도류를 계산하는 기법을 수립하였으며 과거에 수행하였던 이어도 해양과학기지의 수리모형실험 (1/120)의 모델영역에 적용하였다. 이 계산결과를 이용하여 모형구조물에 작용하는 유체력을 계산하고 수리모형실험 결과와 비교함으로써 쇄파유도류의 영향을 정량적으로 평가하였다. When waves propagating over an underwater shoal break at the top of the shoal, wave heights are drastically decreased in the downstream breaking zone, but a secondary current shooting downstream with strong velocity can be induced by the breaking waves themselves. In the case that an offshore structure is placed in the breaking zone, the estimation of wave farce purely based on the visible wave height may cause an under-design of the structure. Thus, for the safe design of the structure, the breaking wave induced current should be necessarily considered in the comprehensive estimation of design load. In the present study, Boussinesq equation model to calculate the wave height distribution and breaking wave induced current was set up and applied to the scheme of a hydraulic model test previously undertaken. Based on the results of the Boussinesq model, fluid forces acting on the model structure were calculated and compared with the experimental results. The importance of the breaking wave induced current was quantitatively assessed by comparing fluid forces with or without current. -
dc.description.uri 2 -
dc.publisher 한국해안,해양공학회 -
dc.title 수중 천퇴 인근에 설치된 해양구조물의 유체력 결정에 대한 고찰 -
dc.title.alternative Evaluation of Fluid Forces Acting on Offshore Structures Placed in the Vicinity of Underwater Shoal -
dc.type Article -
dc.citation.endPage 145 -
dc.citation.startPage 136 -
dc.citation.title 한국해안·해양공학회논문집 -
dc.citation.volume 19 -
dc.citation.number 2 -
dc.contributor.alternativeName 민인기 -
dc.contributor.alternativeName 심재설 -
dc.identifier.bibliographicCitation 한국해안·해양공학회논문집, v.19, no.2, pp.136 - 145 -
dc.identifier.kciid ART001053010 -
dc.description.journalClass 2 -
dc.description.isOpenAccess N -
dc.subject.keywordAuthor wave force -
dc.subject.keywordAuthor wave induced current -
dc.subject.keywordAuthor breaking wave -
dc.subject.keywordAuthor Boussinesq equation model -
dc.subject.keywordAuthor underwater shoal -
dc.subject.keywordAuthor Morison equation -
dc.subject.keywordAuthor 파력 -
dc.subject.keywordAuthor 쇄파유도류 -
dc.subject.keywordAuthor 쇄파 -
dc.subject.keywordAuthor Boussinesq 방정식 모델 -
dc.subject.keywordAuthor 수중 천퇴 -
dc.subject.keywordAuthor 모리슨 방정식 -
dc.description.journalRegisteredClass kci -
Appears in Collections:
Sea Power Enhancement Research Division > Coastal Disaster & Safety Research Department > 1. Journal Articles
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