V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL)
V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL)
V/STOL Aircraft Research Group, National Aerospace Laboratory(NAL)
出版者
航空宇宙技術研究所
出版者(英)
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-410
巻
410
ページ
21
発行年
1975-03
抄録(英)
Wind-tunnel measurements of a jet engine model and a two-dimensional wing model equipped with the pressure orifices on the airfoil contour of its mid-span were made to determine surface pressure distribution on Externally-Blown Flap(EBF) configurations. A Fan-Jet engine model was placed in various angles and positions relative to the wing, and was traversed along the wing span across the free stream. Surface pressure distribution on the wing model was measured to investigate aerodynamic interference between the wing and the engine. Special features of pressure distribution corresponding to each type of EBF classified were revealed. An augmented lift was supplied by the integration of surface pressure. A discussion is presented on the EBF lift augmentation in comparison with the Deflected-Slipstream concept. Effects of wing-sweep on the surface pressure were also examined using the measurements.