22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-1.6.4

LIFT AT HIGH ANGLE OF ATTACK OF A FUSELAGE DELTA WING CONFIGURATION WITH CANARD LATERAL JETS

M. Neamtu
Institutul National de Cercetari Aerospatiale"Elie Carafoli"-INCAS, Romania

Keywords: lateral jets, fluid canard, high lift, vortex lift, wing-fuselage

The paper presents experimental results obtained at the INCAS blow down wind-tunnel on a fuselage-delta wing model with jets blown laterally from inside the fuselage through thin slots located upstream the wing (Canard position). The model, equipped with a six component internal balance and Kulite pressure transducers and designed to allow different configuration / blowing slots arrangements, was tested at low wind tunnel Mach numbers. The tests were made at constant incidence, with blowing intensity sweeping from high to low pressures, by freely discharging the air supplied from a battery of high-pressure cylinders. The experimental results evidenced a complex interaction between the Canard jets and the fuselage-delta wing configuration, producing at high angle of attack (28°-34°) and high blowing rates, an important lift increase of up to 20%..

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