Some vortical-flow flight experiments on slender aircraft that impacted the advancement of aeronautics
Some vortical-flow flight experiments on slender aircraft that impacted the advancement of aeronautics
- New search for: Lamar, John E.
- New search for: Lamar, John E.
AbstractThis paper highlights the three aerodynamic pillars of aeronautics; namely, theory/CFD, wind-tunnel experiments and flight tests, and notes that at any given time these three are not necessarily at the same level of maturity. After an initial history of these three pillars, the focus narrows to a brief history of some vortical-flow flight experiments on slender aircraft that have impacted the advancement of aeronautics in recent decades. They include the F-106, Concorde, SR-71, light-weight fighters (F-16, F/A-18), and F-16XL. These aircraft share in common the utilization of vortical flow and have flown at transonic speeds during a part of the flight envelope. Due to the vast amount of information from flight and CFD that has recently become available for the F-16XL, this aircraft is highlighted and its results detailed. Lastly, it is interesting to note that, though complicated, vortical flows over the F-16XL aircraft at subsonic speeds can be reliably and generally well-predicted with the current CFD flow solvers. However, these solvers still have some problems in matching flight pressure data at transonic speeds. That this problem has been highlighted is both an advancement in aeronautics and a tempting prize to those who would seek its solution.
Document information
Some vortical-flow flight experiments on slender aircraft that impacted the advancement of aeronautics
Progress in Aerospace Sciences ; 45 , 6-8 ; 147-168
2009-01-01
22 pages
Article (Journal)
Electronic Resource
English
BL , butt line on airplane, in, positive toward right-wing tip (see Fig. 16) , CAWAP , Cranked Arrow Wing Aerodynamics Project , CAWAPI , Cranked Arrow Wing Aerodynamics Project International , CFD , computational fluid dynamics , CFL3D , name of structured grid flow solver developed at NASA Langley , DES , detached-eddy simulation , DDES , delayed detached-eddy simulation , EADS , European Aeronautic Defence and Space Military Air Systems , EFD , experimental fluid dynamics , ESP , electronically scanning pressure , FC , flight condition , FS , fuselage station on airplane, in, positive aft (see Fig. 16) , FVS , Free vortex sheet , HARV , High Alpha Research Vehicle , HUD , heads up display , KTH/FOI , Royal Institute of Technology/Swedish Defence Research Agency , LE , leading-edge , LES , large eddy simulation , LEX , Leading-Edge eXtention , NASA , National Aeronautics and Space Administration , NLR , National Aerospace Laboratory , RANS , Reynolds-averaged Navier–Stokes , SCAMP , F-16 Supersonic Cruise and Maneuver Project , USAFA , United States Air Force Academy , WL , water line on airplane, in, positive up (see Fig. 16)
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