Experimental Study of the Effect of Side Plate on the Coanda Effect of Sonic Jet

Title & Authors
Experimental Study of the Effect of Side Plate on the Coanda Effect of Sonic Jet
Park, Sanghoon; Chang, Hongbeen; Lee, Yeol;

Abstract
An experimental study for the characteristics of the thrust-vectoring of a sonic jet utilizing the coanda flap installed at a rectangular nozzle exit is performed. Two side plates are installed at both sides of the flap to decrease the three dimensional effects of the jet on the flap surface. Schlieren flow visualizations and quantitative measurements of the deflection angle of thrusting vector show that the side plates are able to delay the separation of the jet at the downstream of the flap surface. Substantial increase in the deflection angle of the jet as high as $\small{72^{\circ}}$ and small thrust loss as low as 7% are obtained by the present thrust-vectoring technique using the side plates.
Keywords
Thrust Vector Control;Sonic Jet;Shock Wave;Coanda Effect;Flow Separation;
Language
Korean
Cited by
References
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