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Numerical study on the Blade-Vortex interaction of helicopter rotor with lateral blowing
https://jaxa.repo.nii.ac.jp/records/38068
https://jaxa.repo.nii.ac.jp/records/3806824a84846-90e7-4c3d-89bb-649e455cd3ba
名前 / ファイル | ライセンス | アクション |
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nalsp0053031.pdf (3.5 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 | ||||||
言語 | en | |||||
タイトル | Numerical study on the Blade-Vortex interaction of helicopter rotor with lateral blowing | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 翼・渦相互作用 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 回転翼 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ヘリコプタ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 圧縮性流体 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 速度分布 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical analysis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | blade vortex interaction | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | rotary wing | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | helicopter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | compressible fluid | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | velocity distribution | |||||
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 | ||||||
その他のタイトル | 横方向噴出に対するヘリコプタ回転翼の計算によるブレード・渦相互作用の研究 | |||||
著者 |
Yang, Choongmo
× Yang, Choongmo× Baek, Jehyun× 齊藤, 茂× 青山, 剛史× Yang, Choongmo× Baek, Jehyun× Saito, Shigeru× Aoyama, Takashi |
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著者所属 | ||||||
Pohang Univ. of Science and Technology | ||||||
著者所属 | ||||||
Pohang Univ. of Science and Technology | ||||||
著者所属 | ||||||
航空宇宙技術研究所 | ||||||
著者所属 | ||||||
航空宇宙技術研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Pohang University of Science and Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Pohang University of Science and Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Aerospace Laboratory | ||||||
著者所属(英) | ||||||
en | ||||||
National Aerospace Laboratory | ||||||
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: 航空宇宙数値シミュレーション技術シンポジウム2001論文集 en : Special Publication of National Aerospace Laboratory: Proceedings of Aerospace Numerical Simulation Symposium 2001 巻 53, p. 185-190, 発行日 2002-01 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | As a method to reduce Blade-Vortex Interaction (BVI) noise of helicopter rotor, the effects of lateral wing-tip blowing were analyzed for the generation and behavior of tip vortical flow. Three-dimensional compressible Euler/Navier-Stokes solver was used to calculate the effect of blowing air from blade tip on the tip vortex of fixed single blade at the various flow and jet conditions. The numerical results include the position of the vortex center along the vortical flow, the size and strength of the rolled tip vortex, and circulation and maximum tangential velocity of the tip vortex. Jet blowing from the wing-tip can diffuse the tip vortex in the way to make larger core sizes and less velocity gradients, which can be effective way to reduce BVI noise of rotary wing. The predictions of BVI noise were performed using a combined method of an unsteady Euler code with an aeroacounstic code based on Ffowcs-Williams and Hawkings formulation. A moving overlapped grid system with three types of grids (blade grid, inner and outer background grid) was used to simulate BVI of helicopter with two OLS-airfoil blades in forward/descending flight condition. The calculated waveform of BVI noise clearly shows the distinct peaks caused by the interaction between blade and tip vortex and the effect of lateral blowing at tip to reduce BVI noise. | |||||
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: AA0032819032 | |||||
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-53 |