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Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 22 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 16 | - |
dc.citation.title | 한국가시화정보학회지 | - |
dc.citation.volume | 17 | - |
dc.contributor.author | 김정현 | - |
dc.contributor.author | 이영모 | - |
dc.contributor.author | 이재화 | - |
dc.date.accessioned | 2023-12-21T18:13:47Z | - |
dc.date.available | 2023-12-21T18:13:47Z | - |
dc.date.created | 2020-01-04 | - |
dc.date.issued | 2019-12 | - |
dc.description.abstract | Direct numerical simulation of a fully developed turbulent plane Couette-Poiseuille flow with a two-dimensional (2-D) rod-roughened wall is performed to investigate the impacts of the surface roughness. It is shown that the logarithmic region in the mean velocity profile over the rough wall Couette-Poiseuille flow is significantly shortened by the surface roughness compared to that over a turbulent Couette-Poiseuille flow with smooth wall. The Reynolds shear stress over the rough wall Couette-Poiseuille flow is decreased compared to that for a smooth case in the outer layer. These results are attributed to weakened turbulence activity or roll-cell mode over the rough wall Couette-Poiseuille flow near the channel centerline due to suppressed development of u'-structure on the top wall, as documented through spanwise energy spectra of the streamwise velocity fluctuations. Inspection of congregation motion near the bottom wall and time evolution of u'-structure reveal weakened co-supporting cycle for the rough wall case. | - |
dc.identifier.bibliographicCitation | 한국가시화정보학회지, v.17, no.3, pp.16 - 22 | - |
dc.identifier.doi | 10.5407/jksv.2019.17.3.000 | - |
dc.identifier.issn | 1598-8430 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30770 | - |
dc.language | 영어 | - |
dc.publisher | 한국가시화정보학회 | - |
dc.title.alternative | Turbulent plane Couette-Poiseuille flow over a 2-D rod-roughened wall | - |
dc.title | 2차원 표면조도가 있는 난류 평면 Couette-Poiseuille 유동에 대한 직접수치모사 | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.identifier.kciid | ART002545042 | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | kci | - |
dc.description.journalRegisteredClass | kci_candi | - |
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