Low sonic-boom design using numerical optimization

Autor:	Makino, Yoshikazu, Kubota, Hirotoshi, Aoyama, Takashi, Iwamiya, Toshiyuki
Jazyk:	angličtina
Rok vydání:	2007
Předmět:	shock wave 衝撃波 超音速機 オイラー運動方程式 ソニックブーム 計算流体力学 3次元モデル computational fluid dynamics design optimization 圧力シグネチャー blunt body three dimensional model Euler equation of motion 超音速飛行 設計最適化 鈍頭体 supersonic flight pressure signature 航空機設計 supersonic aircraft sonic boom aircraft design
Zdroj:	宇宙航空研究開発機構特別資料 = JAXA Special Publication: Proceedings of International Workshops on Numerical Simulation Technology for Design of Next Generation Supersonic Civil Transport (SST-CFD Workshop). :124-127
ISSN:	1349-113X
Popis:	SST-CFD Workshop. International CFD Workshops for Super-sonic Transport Design 航空宇宙技術研究所 19980316-19980317 東京 日本 SST-CFD Workshop. International CFD Workshops for Super-sonic Transport Design National Aerospace Laboratory 19980316-19980317 Tokyo Japan A study of the aerodynamic design for the reduction of sonic-boom is conducted by combining a three-dimensional Euler CFD (Computational Fluid Dynamics) code with a least-square optimization technique. This method can consider a nonlinear and a three-dimensional effects of aircraft which cannot be considered by previous low-boom design methods based on linear theory. The fuselage geometry of a low-boom aircraft designed by linear theory is modified by this design method in order to minimize the pressure discrepancies between a target low-boom pressure signature and a calculated signature. It is shown that the sonic-boom intensity of the aircraft designed by this method is smaller than that designed by linear theory. The results of the study indicate that this method is a useful tool for low-boom design. 資料番号: AA0063609016 レポート番号: JAXA-SP-06-029E
Databáze:	OpenAIRE
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