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마찰저항 감소에 영향을 주는 난류 경계층 내 미세기포(microbubble)의 가시화 연구

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dc.contributor.author백부근-
dc.contributor.author임근태-
dc.contributor.author김광수-
dc.contributor.author김경열-
dc.contributor.author김유철-
dc.date.accessioned2021-08-03T04:44:15Z-
dc.date.available2021-08-03T04:44:15Z-
dc.date.issued2015-
dc.identifier.issn1225-1143-
dc.identifier.urihttps://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/791-
dc.description.abstractMicrobubbles moving in the turbulent boundary layer are visualized and investigated in the point of frictional drag reduction. The turbulent boundary layer is formed beneath the surface of the 2-D flat plate located in the tunnel test section. The microbubble generator produces mean bubble diameter of 30 ? 50 μm. To capture the micro-bubbles passing through the tiny measurement area of 5.6 mm2 to 200 mm2, the shadowgraphy system is employed appropriately to illuminate bubbles. The velocity field of bubbles reveals that Reynolds stress is reduced in the boundary layer by microbubbles' activity. To understand the contribution of microbubbles to the drag reduction rate more, much smaller field-of-view is required to visualize the bubble behaviors and to find the 2-D void fraction in the inner boundary layer.-
dc.format.extent8-
dc.language한국어-
dc.language.isoKOR-
dc.publisher대한조선학회-
dc.title마찰저항 감소에 영향을 주는 난류 경계층 내 미세기포(microbubble)의 가시화 연구-
dc.title.alternativeVisualization of Microbubbles Affecting Drag Reduction in Turbulent Boundary Layer-
dc.typeArticle-
dc.publisher.location대한민국-
dc.identifier.bibliographicCitation대한조선학회 논문집, v.52, no.4, pp 356 - 363-
dc.citation.title대한조선학회 논문집-
dc.citation.volume52-
dc.citation.number4-
dc.citation.startPage356-
dc.citation.endPage363-
dc.identifier.kciidART002018165-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClasskci-
dc.subject.keywordAuthor미세기포-
dc.subject.keywordAuthor난류 경계층-
dc.subject.keywordAuthor마찰 저항-
dc.subject.keywordAuthor입자영상유속계-
dc.subject.keywordAuthor그림자 기법-
dc.subject.keywordAuthorMicrobubble-
dc.subject.keywordAuthorTurbulent boundary layer-
dc.subject.keywordAuthorSkin friction-
dc.subject.keywordAuthorPIV(particle image velocimetry)-
dc.subject.keywordAuthorShadowgraphy-
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선박연구본부 > Naval Ship Engineering Research Center > 1. Journal Articles
지능형선박연구본부 > 자율운항선박실증연구센터 > Journal Articles

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