Author : National Aeronautics and Space Adm Nasa
Release : 2018-11-18
Genre : Science
Kind : eBook
Book Rating : 598/5 ( reviews)
Book Synopsis Aerodynamic Control of Nasp-Type Vehicles Through Vortex Manipulation by : National Aeronautics and Space Adm Nasa
Download or read book Aerodynamic Control of Nasp-Type Vehicles Through Vortex Manipulation written by National Aeronautics and Space Adm Nasa. This book was released on 2018-11-18. Available in PDF, EPUB and Kindle. Book excerpt: Forebody Vortex Control (FVC) is an emerging technology that has received widespread and concentrated attention by many researchers for application on fighter aircraft to enhance aerodynamic controllability at high angles of attack. This research explores potential application of FVC to a NASP-type configuration. The configuration investigated is characterized by a slender, circular cross-section forebody and a 78 deg swept delta wing. A man-in-the-loop, six-degress-of-freedom, high-fidelity simulation was developed that demonstrates the implementation and advantages of pneumatic forebody vortex control. Static wind tunnel tests were used as the basis for the aerodynamic characteristics modeled in the simulation. Dynamic free-to-roll wind tunnel tests were analyzed and the wing rock motion investigated. A non-linear model of the dynamic effects of the bare airframe and the forebody vortex control system were developed that closely represented the observed behavior. Multiple state-of-the-art digital flight control systems were developed that included different utilizations of pneumatic vortex control. These were evaluated through manned simulation. Design parameters for a pneumatic forebody vortex control system were based on data collected regarding the use of blowing and the mass flow required during realistic flight maneuvers. Smith, Brooke C. and Suarez, Carlos J. and Porada, William M. and Malcolm, Gerald N. AERODYNAMIC CHARACTERISTICS; AIRCRAFT CONTROL; CONTROL SURFACES; CONTROLLABILITY; FLIGHT CONTROL; FLIGHT SIMULATION; VORTICES; ANGLE OF ATTACK; BLOWING; DELTA WINGS; DESIGN ANALYSIS; FIGHTER AIRCRAFT; SWEPT WINGS...
