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개선된 PANS 난류 모델을 이용한 높은 레이놀즈 수를 갖는 실린더 주위 난류 유동에 대한 수치 모사

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dc.contributor.author강민재-
dc.contributor.author정재환-
dc.contributor.author석우찬-
dc.contributor.author조석규-
dc.contributor.author이상봉-
dc.date.accessioned2021-08-03T04:21:52Z-
dc.date.available2021-08-03T04:21:52Z-
dc.date.issued2020-
dc.identifier.issn1598-6071-
dc.identifier.urihttps://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/256-
dc.description.abstractComputational simulations of turbulent flows around a circular cylinder were performed to investigate the drag coefficient and Strouhal number at sub-critical and critical Reynolds numbers. Unstructured grids with 3.1 million cells including prism layers were used in the present study. Both RANS and PANS simulations using k-ω SST model failed to predict a transitional behavior of drag coefficient and vortex shedding frequency at sub-critical and critical Reynolds numbers due to the absence of laminar separation bubble. But a hybrid combination of unresolved turbulence viscosity in PANS and sub-grid scale turbulence viscosity in LES provided a good agreement of drag coefficient and vortex shedding frequency with previous results.-
dc.format.extent10-
dc.language한국어-
dc.language.isoKOR-
dc.publisher한국전산유체공학회-
dc.title개선된 PANS 난류 모델을 이용한 높은 레이놀즈 수를 갖는 실린더 주위 난류 유동에 대한 수치 모사-
dc.title.alternativeCOMPUTATIONAL SIMULATION OF TURBULENT FLOWS AROUND A CIRCULAR CYLINDER AT HIGH REYNOLDS NUMBERS USING AN IMPROVED PANS MODEL-
dc.typeArticle-
dc.publisher.location대한민국-
dc.identifier.bibliographicCitation한국전산유체공학회지, v.25, no.3, pp 113 - 122-
dc.citation.title한국전산유체공학회지-
dc.citation.volume25-
dc.citation.number3-
dc.citation.startPage113-
dc.citation.endPage122-
dc.identifier.kciidART002631287-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClasskci-
dc.subject.keywordAuthor원형 실린더(Circular Cylinder)-
dc.subject.keywordAuthor임계 영역(Critical Regime)-
dc.subject.keywordAuthor하이브리드 PANS(hybridPANS)-
dc.subject.keywordAuthor오픈폼(OpenFOAM)-
dc.subject.keywordAuthor항력 계수(Drag Coefficient)-
dc.subject.keywordAuthor스트롤 수(Strouhal Number)-
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친환경해양개발연구본부 (심해공학연구센터)
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