LIFT INDUCED DRAG REDUCTION

The following paper describes the effective –method proposals for the reduction of the lift induced drag for supersonic conditions i.e. supersonic flights. The paper summarizes the effective techniques for increasing the lift-to-drag ratio and hence increases the reliability of flights and thereby reduces the lift induced drag. A group of experimental studies were conducted to investigate the effects of different wing tip devices and systems on the reduction of induced drag. This paper describes the potential of Elliptical Winglets for the reduction of induced drag without increasing the span of the aircraft. The other process shown over here is the modification of the expression of Lift-to-drag ratio in terms of Mach number.