개선된 PANS 난류 모델을 이용한 높은 레이놀즈 수를 갖는 실린더 주위 난류 유동에 대한 수치 모사
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 강민재 | - |
dc.contributor.author | 정재환 | - |
dc.contributor.author | 석우찬 | - |
dc.contributor.author | 조석규 | - |
dc.contributor.author | 이상봉 | - |
dc.date.accessioned | 2021-08-03T04:21:52Z | - |
dc.date.available | 2021-08-03T04:21:52Z | - |
dc.date.issued | 2020 | - |
dc.identifier.issn | 1598-6071 | - |
dc.identifier.uri | https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/256 | - |
dc.description.abstract | Computational 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.extent | 10 | - |
dc.language | 한국어 | - |
dc.language.iso | KOR | - |
dc.publisher | 한국전산유체공학회 | - |
dc.title | 개선된 PANS 난류 모델을 이용한 높은 레이놀즈 수를 갖는 실린더 주위 난류 유동에 대한 수치 모사 | - |
dc.title.alternative | COMPUTATIONAL SIMULATION OF TURBULENT FLOWS AROUND A CIRCULAR CYLINDER AT HIGH REYNOLDS NUMBERS USING AN IMPROVED PANS MODEL | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.bibliographicCitation | 한국전산유체공학회지, v.25, no.3, pp 113 - 122 | - |
dc.citation.title | 한국전산유체공학회지 | - |
dc.citation.volume | 25 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 113 | - |
dc.citation.endPage | 122 | - |
dc.identifier.kciid | ART002631287 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | 원형 실린더(Circular Cylinder) | - |
dc.subject.keywordAuthor | 임계 영역(Critical Regime) | - |
dc.subject.keywordAuthor | 하이브리드 PANS(hybridPANS) | - |
dc.subject.keywordAuthor | 오픈폼(OpenFOAM) | - |
dc.subject.keywordAuthor | 항력 계수(Drag Coefficient) | - |
dc.subject.keywordAuthor | 스트롤 수(Strouhal Number) | - |
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