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はく離せん断層における渦度の消失
https://kitami-it.repo.nii.ac.jp/records/8019
https://kitami-it.repo.nii.ac.jp/records/801992b610ef-5324-4f1f-9638-0d9b0d32a9c0
名前 / ファイル | ライセンス | アクション |
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2009.4_はく離せん断層における渦度の消失 .pdf (863.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-11-19 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | はく離せん断層における渦度の消失 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Decay of Vorticity in Separated Shear Layer | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Shear Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Separation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Viscous Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Flow Measurements | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Flow Visualization | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
その他のタイトル | ||||||
その他のタイトル | Decay of Vorticity in Separated Shear Layer | |||||
著者 |
宮越, 勝美
× 宮越, 勝美× 羽二生, 博之× 金, 相一× 高井, 和紀 |
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著者別名 | ||||||
姓名 | MIYAKOSHI, Katsumi | |||||
言語 | en | |||||
著者別名 | ||||||
姓名 | HANIU, Hiroyuki | |||||
言語 | en | |||||
著者別名 | ||||||
姓名 | KIM, Sangil | |||||
言語 | en | |||||
著者別名 | ||||||
姓名 | TAKAI, Kazunori | |||||
言語 | en | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this study, process of vorticity decay caused by viscous interaction in a separated shear layer was investigated based on velocity measurements and flow visualization of the separated shear layer in the very vicinity of the separation point of a test body. A right isosceles triangular prism with two 200mm long isosceles sides was used as the test body, and the experiment was carried out at the fixed Reynolds number of 19000. As the results, following aspects were clarified about the vorticity decay. i) A part of the vorticity decay in the separated share layer behind a body was caused by viscous interaction associated with transition of velocity distribution from boundary layer like shape to free shear layer like shape in the very vicinity of the separation point. ii) The Reynolds shear stress associated with turbulent dissipation does not take part in the vorticity decay process in the very vicinity of the separation point. iii) Since the Reynolds shear stress about an intermediate size vortex produced by coalescence of smaller vortices was considerably large, the flow field becomes turbulent and three dimensional by the coalescence of the smaller vortices. | |||||
書誌情報 |
日本機械学會論文集. B編 巻 75, 号 752, p. 676-682, 発行日 2009-04 |
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権利 | ||||||
権利情報 | c 2009 一般社団法人日本機械学会 | |||||
出版者 | ||||||
出版者 | 一般社団法人日本機械学会 | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |