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角柱列を過ぎる流れの合流現象と乱流への遷移
https://jaxa.repo.nii.ac.jp/records/38197
https://jaxa.repo.nii.ac.jp/records/38197b76bbfdd-e8fc-463a-a9fa-1509f96e516b
名前 / ファイル | ライセンス | アクション |
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nalsp0056006.pdf (2.4 MB)
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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 | 角柱列を過ぎる流れの合流現象と乱流への遷移 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 角柱列 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 後流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 非圧縮流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 不安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 一様流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 2次元流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 研究開発 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 線形安定性解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 非圧縮性Navier-Stokes方程式 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | square bar row | |||||
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 | vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wake | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical simulation | |||||
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 | instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | uniform flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | 2 dimensional flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | research and development | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | linear stability analysis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | incompressible Navier-Stokes equation | |||||
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 | Vortices shed from a row of square bars | |||||
著者 |
秋永, 剛
× 秋永, 剛× 角石, 孝央× 水島, 二郎× Akinaga, Takeshi× Kadoishi, Takao× Mizushima, Jiro |
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著者所属 | ||||||
同志社大学 工学部 機械工学科 | ||||||
著者所属 | ||||||
同志社大学 工学部 機械工学科 | ||||||
著者所属 | ||||||
同志社大学 工学部 機械工学科 | ||||||
著者所属(英) | ||||||
en | ||||||
Doshisha University Department of Mechanical Engineering, Faculty of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Doshisha University Department of Mechanical Engineering, Faculty of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Doshisha University Department of Mechanical Engineering, Faculty of Engineering | ||||||
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: 境界層遷移の解明と制御研究会講演論文集 第29回・第30回 en : Special Publication of National Aerospace Laboratory: Proceedings of the 29th and 30th NAL Workshops on Investigation and Control of Boundary-Layer Transition 巻 56, p. 19-22, 発行日 2002-12 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Interactions between the wakes in a flow past a row of square bars are investigated by numerical simulations, the linear stability analysis and the bifurcation analysis. It is assumed that the row of square bars is placed across a uniform flow. Two-dimensional and incompressible flow field is also assumed. The flow is steady and symmetric along a streamwise centerline through the center of each square bar at low Reynolds numbers. However, it becomes unsteady and periodic in time at the Reynolds numbers larger than a critical value, and then the wakes behind the square bars become oscillatory. It is found by numerical simulations that vortices are shed synchronously from every couple of adjacent square bars in the same phase or in the anti-phase depending upon the distance between the bars. The synchronous shedding of vortices is clarified to occur due to an instability of the steady symmetric flow by the linear stability analysis. The bifurcation diagram of the flow is obtained and the critical Reynolds number of the instability is evaluated numerically. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1347-457X | |||||
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: AA0045947006 | |||||
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-56 |