Aerodynamic and Acoustic Characteristics of an Advanced Propeller under Take-off and Landing Conditions

• 資料種別: 文書・図像類
• タイトル: Aerodynamic and Acoustic Characteristics of an Advanced Propeller under Take-off and Landing Conditions
• 著者・編者: 西脇, 英夫; 武田, 克巳; NISHIWAKI, Hideo; TAKEDA, Katsumi
• 著者標目: 西脇, 英夫; 武田, 克巳; NISHIWAKI, Hideo; TAKEDA, Katsumi
• 出版事項: 航空宇宙技術研究所
• 出版年月日等: 1987-06
• 出版年（W3CDTF）: 1987-06
• 並列タイトル等: 離着陸時における革新プロペラの空力並びに音響特性
• タイトル（掲載誌）: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-935
• 巻号年月日等（掲載誌）: 935
• 掲載巻: 935
• 掲載ページ: 11-
• ISSN（掲載誌）: ISSN : 0389-4010
• 本文の言語コード: eng
• 対象利用者: 一般
• 一般注記: 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.; 資料番号: NALTR0935000; レポート番号: NAL TR-935
• オンライン閲覧公開範囲: 限定公開
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ