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抽気孔径が半球模型の極超音速空力特性に及ぼす影響
https://jaxa.repo.nii.ac.jp/records/5420
https://jaxa.repo.nii.ac.jp/records/54208a4d82ad-2d68-4ec0-863e-b71eec079c68
名前 / ファイル | ライセンス | アクション |
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64303018.pdf (1.5 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 | 抽気孔径が半球模型の極超音速空力特性に及ぼす影響 | |||||
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 | Effect of bleed hole diameter on hypersonic aerodynamic characteristics of a hemisphere model | |||||
著者 |
今村, 宰
× 今村, 宰× 綿貫, 忠晴× 鈴木, 宏二郎× Imamura, Osamu× Rathakrishnan, E.× Watanuki, Tadaharu× Suzuki, Kojiro |
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著者所属 | ||||||
東京大学大学院工学系研究科 | ||||||
著者所属 | ||||||
インド工科大学カンプール校 | ||||||
著者所属 | ||||||
東京大学大学院工学系研究科 | ||||||
著者所属 | ||||||
東京大学大学院新領域創成科学研究科 | ||||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Engineering, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Indian Institutes of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Engineering, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Graduate School of Frontier Science, University of Tokyo | ||||||
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40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2008論文集 en : JAXA Special Publication: Proceedings fo 40th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2008 巻 JAXA-SP-08-009, 発行日 2009-02-27 |
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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40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2008. 会期: 2008年6月12日-6月13日. 会場: 東北大学片平キャンパス | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Bleeding blunt nose model is proposed in order to control the aerodynamic characteristics in hypersonic region. The air is bled from the top of the model and it exhausts to the base. The increase in the base pressure is expected and, as a result, the reduction of drag force is expected. This paper reports the experimental results of hemisphere model with different bleed holes in hypersonic wind tunnel and the effect of the bleed hole diameter is discussed. The experiments are performed in a hypersonic wind tunnel, University of Tokyo, in Kashiwa. This wind tunnel enables the Mach number 7 flow of 120 mm in diameter for 60 seconds. In this study, the stagnation pressure is 950 kPa, stagnation temperature is around 600 K and Reynolds number is 1.6 x 10(exp 5), respectively. The prototype model is a hemisphere in 40 mm diameter with a bleeding hole in 5 mm and 10 mm diameter. From the shadowgraph images, the shock distance becomes shorter with the increase of the bleed hole diameter and the shock wave shape becomes concave at the center for larger bleed hole diameter. From the measurement of balance system, drag force coefficient reduces with the increase in the bleed hole diameter and the maximum reduction of drag force coefficient is 10 % of that without bleeding. The main reason for the reduction of drag force is estimated to be increase of the base pressure from the measurement result of base pressure. The base pressure increases with the increase of the bleed hole diameter. | |||||
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 | |||||
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: AA0064303018 | |||||
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-08-009 |