University of Tokyo
University of Tokyo
National Aerospace Laboratory
National Aerospace Laboratory
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: Proceedings of International Workshops on Numerical Simulation Technology for Design of Next Generation Supersonic Civil Transport (SST-CFD Workshop)
巻
JAXA-SP-06-029E
ページ
124 - 127
発行年
2007-03-30
会議概要（会議名, 開催地, 会期, 主催者等）
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
会議概要（会議名, 開催地, 会期, 主催者等）（英）
SST-CFD Workshop. International CFD Workshops for Super-sonic Transport Design National Aerospace Laboratory 19980316-19980317 Tokyo Japan
抄録（英）
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.
Low sonic-boom design using numerical optimization
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