Abstract
The aerodynamic characteristics of the external upper surface blowing (USB) propulsive-lift configuration using side fences for enhancement of engine exhaust flow attachment over a wing and USB flap surface were studied by wind-tunnel experiments. Results were compared with those attained either by using the system without special devices or by using vortex generators. It was concluded that the USB propulsive-lift system using side fences had a superior potential for attaining high and efficient powered-lift performances.
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