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円柱後流中の渦列の渦構造の変化
https://jaxa.repo.nii.ac.jp/records/37089
https://jaxa.repo.nii.ac.jp/records/370899a4a851e-2712-4c03-9104-8c5af72b8e2c
名前 / ファイル | ライセンス | アクション |
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nalsp0035012.pdf (2.5 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 円柱後流中の渦列の渦構造の変化 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦構造 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流れの可視化 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦列 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 速度勾配テンソル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦度数 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 水素気泡法 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 円柱後流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | せん断応力分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 等値線図 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 不安定シート状渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 安定棒状渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦度分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 主変形速度 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortex structure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | flow visualization | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortex street | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | velocity gradient tensor | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vorticity number | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hydrogen bubble technique | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | circular cylinder wake | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | shear stress distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | contour line | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | unstable sheet like vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stable rod like vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vorticity distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | principal deformation rate | |||||
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 | Variation of vortex structure of the vortex streets traveling in the wake of a circular cylinder | |||||
著者 |
永田, 拓
× 永田, 拓× 成田, 達治× 田中, 実一× 箕浦, 智× 福島, 千晴× Nagata, Hiroshi× Narita, Tatsuharu× Tanaka, Yoshikazu× Minoura, Satoru× Fukushima, Chiharu |
|||||
著者所属 | ||||||
岐阜大学 | ||||||
著者所属 | ||||||
岐阜大学 | ||||||
著者所属 | ||||||
岐阜大学 | ||||||
著者所属 | ||||||
岐阜大学 | ||||||
著者所属 | ||||||
岐阜大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Gifu University | ||||||
著者所属(英) | ||||||
en | ||||||
Gifu University | ||||||
著者所属(英) | ||||||
en | ||||||
Gifu University | ||||||
著者所属(英) | ||||||
en | ||||||
Gifu University | ||||||
著者所属(英) | ||||||
en | ||||||
Gifu University | ||||||
出版者 | ||||||
出版者 | 航空宇宙技術研究所 | |||||
出版者(英) | ||||||
出版者 | National Aerospace Laboratory (NAL) | |||||
書誌情報 |
航空宇宙技術研究所特別資料 en : Special Publication of National Aerospace Laboratory 巻 35, p. 53-59, 発行日 1997-07 |
|||||
会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 26-27 Sep. 1996 (19th) | |||||
会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 26-27 Sep. 1996 (19th) | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 水素気泡法を用いた渦構造を理解する定量的情報技法を提案した。本技法を用いて、円柱後流の近傍から遠方までの対流循環渦領域における速度のみならず速度勾配テンソルも計測することが出来た。本技法で得た値に基づき、渦の全体構造を見るため、流れ場の渦度、渦度数、主変形速度、せん断応力およびラプラシアンP(Pは動圧)のような、渦構造を特性化する物理量の等高線を可視化した。その結果は、渦が円柱後流近傍を移動するときは、不安定シート状から安定棒状へ構造を変化し、また、円柱後流遠方では、安定棒状から3次元構造および渦列への再配列を誘導する不安定シート状へ、再び構造を変化することを示唆している。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | A technique for quantitative information was proposed to understand the vortex structure by means of hydrogen bubble techniques. Using the technique, not only the velocity but the velocity gradient tensor were obtained in the vortex region convecting from the near wake to the far wake of a circular cylinder. Based on the values obtained in the technique, the contours of the physical quantities which characterize the vortex structures, i.e. vorticity, vorticity number, principal value of the rate of deformation, shear stress and Laplacian P (P: kinematic pressure) in the flow field, were illustrated to see the overall structure of the vortices. These results suggest that the vortices change in structure from unstable sheet-like vortices to stable rod-like vortices as the vortices traveling in the near wake of the cylinder. And in the far wake of the cylinder the vortices once again change in structure from stable rod-like vortices to unstable sheet-like vortices which induce three dimensional structure and the rearrangement of the vortices in the vortex streets. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0289-260X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10097345 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0001127012 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: NAL SP-35 |