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Self-Noise Effects on Aerodynamics of Cambered Airfoils at Low Reynolds Number
https://jaxa.repo.nii.ac.jp/records/22592
https://jaxa.repo.nii.ac.jp/records/22592f15853a6-0d73-4feb-bd9e-73887971ac59
名前 / ファイル | ライセンス | アクション |
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PA1520005000.pdf (4.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-08-17 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Self-Noise Effects on Aerodynamics of Cambered Airfoils at Low Reynolds Number | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
池田, 友明
× 池田, 友明× 跡部, 隆× 藤本, 大介× 稲澤, 歩× 淺井, 雅人× Ikeda, Tomoaki× Atobe, Takashi× Fujimoto, Daisuke× Inasawa, Ayumu× Asai, Masahito |
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著者所属 | ||||||
宇宙航空研究開発機構航空本部(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構航空本部(JAXA) | ||||||
著者所属 | ||||||
首都大学東京 | ||||||
著者所属 | ||||||
首都大学東京 | ||||||
著者所属 | ||||||
首都大学東京 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Metropolitan University | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Metropolitan University | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Metropolitan University | ||||||
出版者(英) | ||||||
出版者 | American Institute of Aeronautics and Astronautics | |||||
書誌情報 |
en : AIAA Journal 巻 53, 号 8, p. 2256-2269, 発行日 2015-08 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Aerodynamics of cambered airfoils are investigated numerically, using a NACA four-digit series of 6% thickness at low Reynolds number Re=10,000 and moderate Mach number M=0.2, by focusing on the relation of aeroacoustic effects and hydrodynamic flow unsteadiness. Two-dimensional numerical simulations show that the onset of an acoustic feedback loop leads to an abrupt increase in lift force. Associated with the feedback process, the evolution of two-dimensional vortices in the suction-side boundary layer shifts a separation bubble toward the leading edge, which causes a relatively steep pressure recovery near the trailing edge. Through a parametric study on airfoil shape, the aerodynamically favorable feature of aft camber is further enhanced with the presence of an acoustic feedback loop. In addition, the aft camber airfoil successfully forms a laminar separation bubble in three-dimensional calculations at the present Reynolds number, developing transitional behavior on the suction side, supposedly prompted by the airfoil tones. Although the boundary layer shows three-dimensional complexity, still the formation of an acoustic feedback loop is strongly suggested, via the comparison of spanwise correlations. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: 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 illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0001-1452 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00502751 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.2514/1.J053664 | |||||
関連名称 | info:doi/10.2514/1.J053664 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1520005000 |