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壁近傍乱流における秩序構造の再生メカニズム
https://jaxa.repo.nii.ac.jp/records/6188
https://jaxa.repo.nii.ac.jp/records/61882efc813b-3a15-479b-a208-8de789f768cc
名前 / ファイル | ライセンス | アクション |
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49208006.pdf (378.4 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 壁近傍乱流における秩序構造の再生メカニズム | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 壁面近傍乱流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 非圧縮性流れ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 振動流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ナビエ-ストークス方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 直接数値シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 3次元モデル | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulent flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | near-wall turbulence | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | incompressible flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | oscillating flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Navier-Stokes equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | direct numerical simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | three dimensional model | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Regeneration mechanisms of coherent structures in near-wall turbulence | |||||
著者 |
河原, 源太
× 河原, 源太× Kawahara, Genta |
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著者所属 | ||||||
京都大学 大学院工学研究科 | ||||||
著者所属(英) | ||||||
en | ||||||
Kyoto University Graduate School of Engineering | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集 第35回・第36回 en : JAXA Special Publication: Proceedings of the 35th and 36th JAXA Workshops on Investigation and Control of Boundary-Layer Transition 巻 JAXA-SP-05-012, p. 17-18, 発行日 2006-02-01 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | A recently found time-periodic solution to the incompressible three-dimensional Navier-Stokes equation for plane Couette flow is reviewed to discuss how near-wall turbulence self-sustains. This solution represents the periodic motion which consists of the cyclic formation and breakdown of streamwise vortices and low-velocity streaks. Since the solution is unstable, the periodic motion is not attained in reality. In phase space, however, a turbulent state wanders around the corresponding periodic orbit, for most of the time except for occasional escapes from it. When the turbulent, state approaches the periodic orbit, coherent structures appear in physical space to exhibit recurrent behavior, i.e. the regeneration cycle, which is characterized in terms of the present solution. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0049208006 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-05-012 |