柔構造を用いたウェイブライダー型飛行体の超音速空力特性に関する研究
研究申込者
鈴木宏二郎 (東京大学)
Abstract
Recently, non-rigid structures show potential in the field of aerospace because of low weight and flexibility.
In this research, the model which has a triangular pyramid shape with the windward surface made from elastic membrane was tested in the supersonic wind tunnel at Mach number 3 to investigate its aerodynamic characteristics. The results show that aerodynamic characteristics depend on the non-dimensional aero-elasticity parameter CAE , which represents the ratio of the aerodynamic force to the elastic force. Both lift and drag decreased but L/D increased when CAE increased, because the windward surface is stretched in the downstream direction due to elastic deformation of the menbrane. The numerical analysis was made by the combination of compressible Navier-Stokes analysis and a three-dimensional particle-based membrane model. The experimental fact that the membrane near the trailing edge was torn when the dynamic pressure exceeded a certain value was con?rmed by the numerical analysis.
Key words
Membrane, Numerical Analysis, Supersonic Flow, Aerodynamic Force
2005年度の研究成果
日浦優吾，鈴木宏二郎，"柔構造を有する揚力飛行体の超音速空力特性に関する研究"，第37回流体力学講演会講演集 ，2006
利用期間
平成17年12月12日 〜 平成17年12月16日