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超音速流中における噴流の乱流混合のLES解析
https://jaxa.repo.nii.ac.jp/records/4733
https://jaxa.repo.nii.ac.jp/records/47334d9efff9-94e2-4a01-be00-6449028213d9
名前 / ファイル | ライセンス | アクション |
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64967026.pdf (1.3 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 | 超音速流中における噴流の乱流混合のLES解析 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | LES of Jet Turbulent Mixing in Supersonic Flow | |||||
著者 |
渡部, 潤也
× 渡部, 潤也× 河内, 俊憲× 滝田, 謙一× 升谷, 五郎× Watanabe, Junya× Kouchi, Toshinori× Takita, Kenichi× Masuya, Goro |
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著者所属 | ||||||
東北大学 | ||||||
著者所属 | ||||||
東北大学 | ||||||
著者所属 | ||||||
東北大学 | ||||||
著者所属 | ||||||
東北大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
Tohoku 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特別資料: 第42回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2010 論文集 en : JAXA Special Publication: Proceedings of 42nd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2010 巻 JAXA-SP-10-012, 発行日 2011-02-28 |
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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 | 第42回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2010 (2010年6月24日-25日. 米子コンベンションセンター BiG SHiP) | |||||
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 | 42nd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2010 (June 24-25, 2010. Yonago Convention Center BiG SHiP), Yonago, Tottori Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The large-eddy simulation (LES) of a jet transversely injected into a supersonic crossflow was conducted to investigate the large-scale vortex structure around the jet and the turbulent mixing state. The injectant concentration obtained by LES was compared with acetone planer laser-induced fluorescence (PLIF) data. Numerical results reproduced the injectant mixing field not only in the averaged distribution but also in the turbulent features. Statistical analysis based on LES data evaluated the extent of the injectant turbulent diffusion flux and the injectant mean convective flux in a near-field cross-sectional plane: the mean convection of the injectant by counter-rotating vortex pair was larger than the turbulent diffusion except in the windward mixing layer between jet and crossflow. The vortex structure was visualized by the iso-surfaces of second invariant of the velocity gradient tensor. In the windward mixing layer, large-scale vortices randomly originated and extended mainly toward the downstream direction around the jet trajectory, meandering in the spanwise and wall-normal directions. These vortices deeply penetrate into the crossflow and contribute to the enhanced mixing by entraining a large amount of crossflow air in the near-field. Three-dimensional jet projection was produced by the windward large-scale vortex which has streamwise counter-rotating vortex pair. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
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: AA0064967026 | |||||
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-10-012 |