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Aerodynamic and Acoustic Characteristics of an Advanced Propeller under Take-off and Landing Conditions
https://jaxa.repo.nii.ac.jp/records/45194
https://jaxa.repo.nii.ac.jp/records/45194b363e770-fd2a-4c73-86b9-c2fa16c2df32
名前 / ファイル | ライセンス | アクション |
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naltr00935.pdf (999.6 kB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Aerodynamic and Acoustic Characteristics of an Advanced Propeller under Take-off and Landing Conditions | |||||
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_18gh | |||||
資源タイプ | technical report | |||||
その他のタイトル | ||||||
その他のタイトル | 離着陸時における革新プロペラの空力並びに音響特性 | |||||
著者 |
西脇, 英夫
× 西脇, 英夫× 武田, 克巳× NISHIWAKI, Hideo× TAKEDA, Katsumi |
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著者所属 | ||||||
航空宇宙技術研究所新型航空機研究グループ | ||||||
著者所属 | ||||||
航空宇宙技術研究所新型航空機研究グループ | ||||||
著者所属(英) | ||||||
en | ||||||
V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL) | ||||||
著者所属(英) | ||||||
en | ||||||
V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL) | ||||||
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報告 en : Technical Report of National Aerospace Laboratory TR-935 巻 935, p. 11, 発行日 1987-06 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Three configurations of six-bladed, 400-mm-diam, scale-model advanced propellers such as backward-, forward-, and back-forward alternately installed swept blades were tested in anechoic environments with an incoming main flow velocity up to 68 m/s. Under no incoming-flow conditions, the blade separated flow was also discussed from on academic point of view. The data for the advance ratio of 0.43-1.15 were obtained in the aeroacoustic aspects. The altermately swept blades arrangement showed the best performance in spanwise load distribution among the three configurations. The forward-swept blades did not exhibit any aeroacoustic advantage. The altermately swept configuration as a tandem rotation has the potential for decreasing the sound levels at the blade passage frequencies by the dispersion of sound with no sacrifice of aerodynamic performance and no additional mechanical complexity. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0389-4010 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: NALTR0935000 | |||||
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 TR-935 |