Experimental Investigation on Wing Aerodynamic Characteristics of Flapping-Wing Aerocraft with Wing-Blade

In order to investigate the effect of camber wing with wing-blade located beneath the wing surface on the aerodynamic characteristics of flapping-wing micro air vehicle,wind tunnel test of flapping-wing MAV(Micro Air Vehicle) was performed in a special micro air vehicle wind tunnel of NPU(Northwestern Polytechnical University).Wing with wing-blade and wing without wing-blade were employed for wind tunnel tests at different attack angle.Experimental results indicate that the lift coefficient of wing with wing-blade is larger than that of wing without wing-blade.So it is proved that wing-blade can prevent spanwise airflow beneath wing surface and increase wing lift.At small attack angles,wing with wing-blade can increase effectively aerodynamic efficiency of flapping-wing air vehicle and improve flight performance.Results of wind tunnel test provide technology support for application of wing with wing-blade in flapping-wing micro air vehicle.