Aerodynamic Investigation of Joined Wing Configurations for Transport Aircraft
Joined wings constructed using the NASA NLF2-0415 natural laminar flow airfoil are studied. The configuration geometry can be found which meets or exceeds the aerodynamic efficiency of a single wing with the same surface area and with an aspect ratio that is equal to or lower than the base wing. The analysis was done using an aerodynamic panel code, PMARC. It is demonstrated that with proper selection of wing stagger, tip gap, and wing area ratios, a joined wing configuration can achieve the same aerodynamic efficiency, C,/C,, as+D16 a single wing configuration but with a shorter span than the single wing. Joined wings with positive stagger are shown to be more efficient than joined wings with negative stagger for all cases.
I. Tracy and B. P. Selberg, "Aerodynamic Investigation of Joined Wing Configurations for Transport Aircraft," AIAA 1996, American Institute of Aeronautics and Astronautics (AIAA), Jan 1996.
The definitive version is available at https://doi.org/10.2514/6.1996-2373
AIAA 1996 Meeting
Mechanical and Aerospace Engineering
Article - Conference proceedings
© 1996 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.