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- 資料種別
- 規格・テクニカルリポート類
- 著者・編者
- 牧野, 好和青山, 剛史岩宮, 敏幸綿貫, 忠晴久保田, 弘敏Makino, YoshikazuAoyama, TakashiIwamiya, ToshiyukiWatanuki, TadaharuKubota, Hirotoshi
- 著者標目
- 出版事項
- 出版年月日等
- 2000-02
- 出版年(W3CDTF)
- 2000-02
- 並列タイトル等
- An aerodynamic design method for generating low sonic-boom pressure signatures
- タイトル(掲載誌)
- 航空宇宙技術研究所報告
- 巻号年月日等(掲載誌)
- 1406
- 掲載巻
- 1406
- 掲載ページ
- 1-19
- ISSN(掲載誌)
- ISSN : 0389-4010
- 本文の言語コード
- jpn
- 件名標目
- 対象利用者
- 一般
- 一般注記
- A study was conducted of an aerodynamic design for the sonic-boom reduction of supersonic transport. Sonic-boom is one of the most important environmental problems for supersonic transport and methods for reduction of sonic-boom intensity have been published. These previous low sonic-boom design methods utilize the F-function method which is based on a linear theory. In comparison a new low sonic-boom design method is proposed in this study in order to deal with the nonlinear effects of the strong shocks near the aircraft and the three-dimensional effects of the aircraft configuration unable to be taken into account in the F-function method. This new low sonic-boom design method combines a three-dimensional Euler CFD (Computational Fluid Dynamics) code with a least-square optimization technique. The aircraft fuselage geometry is modified by this method in order to minimize the pressure differences between a pressure signature calculated by the CFD and a target low sonic-boom pressure signature produced in the near-field below the aircraft. This target near-field pressure signature is determined from the target low sonic-boom ground signature by utilizing the waveform parameter method. It will be demonstrated here that the sonic-boom intensity of the low sonic-boom aircraft configuration designed by the F-function method is reduced by this new low sonic-boom design method.資料番号: AA0001993000レポート番号: NAL TR-1406
- オンライン閲覧公開範囲
- インターネット公開
- 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)
- 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