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DC Field | Value | Language |
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dc.citation.endPage | 24 | - |
dc.citation.number | 46 | - |
dc.citation.startPage | 1 | - |
dc.citation.title | JOURNAL OF TURBULENCE | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Lee, Jae Hwa | - |
dc.contributor.author | Lee, Jin | - |
dc.contributor.author | Sung, Hyung Jin | - |
dc.date.accessioned | 2023-12-22T05:40:57Z | - |
dc.date.available | 2023-12-22T05:40:57Z | - |
dc.date.created | 2014-12-31 | - |
dc.date.issued | 2011-11 | - |
dc.description.abstract | Coherent wall-normal structures in a turbulent boundary layer (TBL) have been investigated by scrutinizing a direct numerical simulation (DNS) dataset with Re-theta = 2500. It was found that groups of hairpin legs induce wall-normal-aligned structures and these large-scale regions are mostly induced by the combination of the attached and detached vortical structures. By using the feature extraction algorithm, we found that more than approximately 60% of the attached momentum regions extend beyond the log region, while most of the detached regions formed locally away from the wall have relatively short wall-normal extent. The two-point correlation of the streamwise velocity fluctuations showed that the wall-normal length scales vary linearly with the distance from the wall, and, finally, the two-point correlations between the signed swirling motions showed that interactions between counterrotating vortices are predominant throughout the boundary layer and especially frequent in the near-wall region. | - |
dc.identifier.bibliographicCitation | JOURNAL OF TURBULENCE, v.12, no.46, pp.1 - 24 | - |
dc.identifier.doi | 10.1080/14685248.2011.627860 | - |
dc.identifier.issn | 1468-5248 | - |
dc.identifier.scopusid | 2-s2.0-84937582729 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/9724 | - |
dc.identifier.url | https://www.tandfonline.com/doi/abs/10.1080/14685248.2011.627860 | - |
dc.identifier.wosid | 000299688100001 | - |
dc.language | 영어 | - |
dc.publisher | TAYLOR & FRANCIS LTD | - |
dc.title | Spatial features of the wall-normal structures in a turbulent boundary layer | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | turbulent boundary layer | - |
dc.subject.keywordAuthor | turbulent structure | - |
dc.subject.keywordAuthor | direct numericalsimulation | - |
dc.subject.keywordPlus | PARTICLE IMAGE VELOCIMETRY | - |
dc.subject.keywordPlus | LOGARITHMIC REGION | - |
dc.subject.keywordPlus | SPANWISE VORTICES | - |
dc.subject.keywordPlus | VORTEX PACKETS | - |
dc.subject.keywordPlus | SCALE MOTIONS | - |
dc.subject.keywordPlus | CHANNEL FLOW | - |
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