International Journal of Mechanical and Industrial Engineering
Abstract
An extensive experimental study is conducted to examine the potentiality of Multi-Winglets (similar to bird tip feathers) for the reduction of Induced Drag, improved CL without increase in span of aircraft wing. The model composed of a rectangular wing built from NACA 0015 airfoil constituted of three winglets, which are small wings without sweep & twist. The test conducted in subsonic wind tunnel at flow speed 20m/s and placing the wing at angle of attack ranging from -5 to +15 deg. And also the wing with no winglet (bare wing) and with single winglet also tested in the same condition as in the case of three winglets (multi-winglet). Wind tunnel balances provided lift measurements and tuft flow visualization obtained wingtip vortex information. The results show that multi-winglet system reduced induced drag by 27.9% and improved CL by 26.5% compare to bare wing.
Recommended Citation
G,, Srikanth and Bogadi, Surendra
(2011)
"Experimental Investigation on the Effect of Multi-Winglets,"
International Journal of Mechanical and Industrial Engineering: Vol. 1:
Iss.
1, Article 11.
DOI: 10.47893/IJMIE.2011.1010
Available at:
https://www.interscience.in/ijmie/vol1/iss1/11
DOI
10.47893/IJMIE.2011.1010
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