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An experimental investigation of coherent structures and induced noise characteristics of the partial cavitating flow on a two-dimensional hydrofoil

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dc.contributor.authorAhn, B.-K.-
dc.contributor.authorJeong, S.-W.-
dc.contributor.authorPark, C.-S.-
dc.contributor.authorKim, G.-D.-
dc.date.accessioned2023-12-22T08:01:30Z-
dc.date.available2023-12-22T08:01:30Z-
dc.date.issued2020-
dc.identifier.issn2311-5521-
dc.identifier.urihttps://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8307-
dc.description.abstractIn many practical submerged objects, various types of cavitation such as bubble, sheet, and cloud cavitation occur according to flow conditions. In spite of numerous theoretical, numerical, and experimental studies, there are still many problems to be solved such as induced noise and damage potential due to cavitation. In this paper, an experimental investigation on coherent structures and induced noise characteristics of partial cavitation on a two-dimensional hydrofoil is presented. Experiments that focused on the dynamics of cavitation clouds were conducted in a cavitation tunnel. Using high-speed visualization, the series process consisting of inception, growth, and desinence of the partial cavity was investigated. The noise generated during the process was also measured, and the correlation with the cavity pattern was examined. The results show that the periodic behavior of cavitation clouds is directly reflected in the noise characteristics. In addition, the visualization of coherent structures within the sheet and cloud cavity provides a qualitative understanding of hairpin vortices and their packets, which play a dominant role in turbulent cavitating flows. ? 2020 by the authors.-
dc.language영어-
dc.language.isoENG-
dc.publisherMDPI-
dc.titleAn experimental investigation of coherent structures and induced noise characteristics of the partial cavitating flow on a two-dimensional hydrofoil-
dc.typeArticle-
dc.publisher.location스위스-
dc.identifier.doi10.3390/fluids5040198-
dc.identifier.scopusid2-s2.0-85119899849-
dc.identifier.bibliographicCitationFluids, v.5, no.4-
dc.citation.titleFluids-
dc.citation.volume5-
dc.citation.number4-
dc.type.docTypeArticle-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordAuthorCavitation-
dc.subject.keywordAuthorCloud cavity-
dc.subject.keywordAuthorCoherent structure-
dc.subject.keywordAuthorHairpin vortex-
dc.subject.keywordAuthorInduced noise-
dc.subject.keywordAuthorSheet cavity-
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지능형선박연구본부 (함정공학연구센터)
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