Reactive Flow Control of Delta Wing Vortex (Postprint)
OHIO UNIV ATHENS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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In this paper, the reactive flow control of delta wing leading edge vortices using along-core pulse width modulation PWM flow injection is presented. Leading edge vortices on the upper surface of a delta wing can augment lift. Manipulating breakdown points of leading edge vortices can effectively change the delta wings lift and drag and generate attitude control torque. In this paper, a dynamic model of active flow control of vortex break down points is identified from wind tunnel data using a model scheduling method. Based on the identified model, a closed-loop active flow controller is developed. Simulation and real-time wind tunnel test show that the closed-loop controller can effectively manipulate the upper surface pressure of the delta wing, which indicates the closed-loop controller can effectively control vortex breakdown points.
- Fluid Mechanics
- Computer Programming and Software
- Test Facilities, Equipment and Methods