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The mode-selection mechanism of cross-flow instability in three-dimensional boundary layers
https://jaxa.repo.nii.ac.jp/records/2398
https://jaxa.repo.nii.ac.jp/records/2398a29285ab-cef2-4a91-a31b-4926a3613f0f
名前 / ファイル | ライセンス | アクション |
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47414000.pdf (1.9 MB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | The mode-selection mechanism of cross-flow instability in three-dimensional boundary layers | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 3次元境界層 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 横流れ不安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | モード選択機構 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 線形安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 壁面曲率 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流線曲率 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | レイノルズ数 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | three dimensional boundary layer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | cross-flow instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | mode-selection mechanism | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | linear stability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wall curvature | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | streamline curvature | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Reynolds number | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||
資源タイプ | technical report | |||||
その他のタイトル | ||||||
その他のタイトル | 3次元境界層における横流れ不安定のモード選択機構 | |||||
著者 |
高木, 正平
× 高木, 正平× 伊藤, 信毅× Takagi, Shohei× Ito, Nobutake |
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著者所属 | ||||||
宇宙航空研究開発機構 総合技術研究本部 | ||||||
著者所属 | ||||||
帝京大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics | ||||||
著者所属(英) | ||||||
en | ||||||
Teikyo University | ||||||
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研究開発報告 en : JAXA Research and Development Report 巻 JAXA-RR-03-022E, 発行日 2004-03-25 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 線形安定理論は、3次元境界層における横流れ不安定に対して時間依存型モードは定在モードに比べてより不安定であると予測している。3次元境界層の典型的な流れ場である静止流体中で回転する円盤流では定在モードが進行波モードに比べて優勢的に観察されているけれども、その理由については合理的な説明がなされていない。本論文では、これまでの実験的観察と理論的研究のリビューに加えて、壁面曲率項、流線曲率項および非平行性を含めた安定計算を実施して、その選択機構について議論している。この結果、壁面曲率項は横流れ不安定のモード選択機構に重要な役割を演じる、と同時に撹乱の初期振幅も重要であることが明らかにされている。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Linear stability theory predicts that the most unstable disturbance of crossflow instability in three-dimensional boundary layers is a time dependent mode rather than a stationary mode. Stationary rather than traveling mode has been predominantly observed in natural disk flow, spinning in still air, which is known to be a typical example of three-dimensional boundary layers. The present paper discusses this mode selection mechanism of crossflow instability on the basis of reviewing both experimental and theoretical research and making linear stability calculations inclusive of a wall-curvature term as well as streamline-curvature and non-parallel terms. This reveals that the wall curvature plays a key role in the mode selection mechanism of three-dimensional boundary layers and that initial amplitudes of unstable disturbances are of principal importance. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | ISSNの誤記: 1349-1148 | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Incorrect ISSN: 1349-1148 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-1113 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1192675X | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0047414000 | |||||
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-RR-03-022E |