Author : Yong Liu
Release : 2006
Genre : Delta wing airplanes
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Reactive Flow Control of Delta Wing Vortex by : Yong Liu
Download or read book Reactive Flow Control of Delta Wing Vortex written by Yong Liu. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: 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 wing's 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.