마찰저항 감소에 영향을 주는 난류 경계층 내 미세기포(microbubble)의 가시화 연구
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 백부근 | - |
dc.contributor.author | 임근태 | - |
dc.contributor.author | 김광수 | - |
dc.contributor.author | 김경열 | - |
dc.contributor.author | 김유철 | - |
dc.date.accessioned | 2021-08-03T04:44:15Z | - |
dc.date.available | 2021-08-03T04:44:15Z | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 1225-1143 | - |
dc.identifier.uri | https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/791 | - |
dc.description.abstract | Microbubbles 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.extent | 8 | - |
dc.language | 한국어 | - |
dc.language.iso | KOR | - |
dc.publisher | 대한조선학회 | - |
dc.title | 마찰저항 감소에 영향을 주는 난류 경계층 내 미세기포(microbubble)의 가시화 연구 | - |
dc.title.alternative | Visualization of Microbubbles Affecting Drag Reduction in Turbulent Boundary Layer | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.bibliographicCitation | 대한조선학회 논문집, v.52, no.4, pp 356 - 363 | - |
dc.citation.title | 대한조선학회 논문집 | - |
dc.citation.volume | 52 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 356 | - |
dc.citation.endPage | 363 | - |
dc.identifier.kciid | ART002018165 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | 미세기포 | - |
dc.subject.keywordAuthor | 난류 경계층 | - |
dc.subject.keywordAuthor | 마찰 저항 | - |
dc.subject.keywordAuthor | 입자영상유속계 | - |
dc.subject.keywordAuthor | 그림자 기법 | - |
dc.subject.keywordAuthor | Microbubble | - |
dc.subject.keywordAuthor | Turbulent boundary layer | - |
dc.subject.keywordAuthor | Skin friction | - |
dc.subject.keywordAuthor | PIV(particle image velocimetry) | - |
dc.subject.keywordAuthor | Shadowgraphy | - |
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