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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 402 | - |
dc.citation.startPage | 394 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.citation.volume | 44 | - |
dc.contributor.author | Ahn, Junsun | - |
dc.contributor.author | Lee, Jae Hwa | - |
dc.contributor.author | Sung, Hyung Jin | - |
dc.date.accessioned | 2023-12-22T03:10:43Z | - |
dc.date.available | 2023-12-22T03:10:43Z | - |
dc.date.created | 2014-12-31 | - |
dc.date.issued | 2013-12 | - |
dc.description.abstract | Direct numerical simulations (DNSs) of turbulent boundary layers (TBLs) over three-dimensional (3D) cube-roughened walls were performed and the turbulent characteristics in the inner and outer layers were statistically analyzed. The spanwise spacing was varied over pz/. k= 2, 3, 4, and 6 (pz is the spanwise spacing between cubes and k is the height of the roughness) to examine the effects of the roughness spacing on the TBLs. The form drag (Cp) reached a maximum at pz/. k= 3, whereas the skin-friction drag (Cf) reached a minimum at the same extent. The Reynolds stresses in the outer region were shown to increase with increasing pz/. k, and similar behavior was observed in the wall-normal velocity fluctuations at the roughness crest (vw+). The properties of the turbulence in the inner and outer layers were found to be well represented by the roughness density (λp). | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, v.44, pp.394 - 402 | - |
dc.identifier.doi | 10.1016/j.ijheatfluidflow.2013.07.010 | - |
dc.identifier.issn | 0142-727X | - |
dc.identifier.scopusid | 2-s2.0-84888435727 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/9710 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0142727X13001525?via%3Dihub | - |
dc.identifier.wosid | 000329594600035 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Statistics of the turbulent boundary layers over 3D cube-roughened walls | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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