IN IN300DE2012A
The present invention relates to an aerodynamic lift generation device using unsteady vortices, which comprises a vortex generator (VG) and a lifting surface (LS), said LS being positioned at an appropriate downstream location. The air-flow over the configuration results in a trapped of vortices on the upper side of LS, leading to formation of a virtual airfoil and capable of producing high lift. The system does not involve any moving components, but simulates the aerodynamic effect of flapping wings to generate adequate lift to drag ratio required for real flight applications, especially at low Reynolds numbers. The present invention enables the design of new wings suitable for small airplanes such as Micro and Nano air vehicles. In addition, it has applications as a MEMS device for flow control and as a propeller for low Reynolds number air and marine propulsion systems. (fig. 1)
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