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http://dx.doi.org/10.3795/KSME-C.2014.2.1.029

Numerical Study on Aerodynamic Characteristics of Kline-Fogleman Airfoil and Its 3D Application at Low Reynolds Number  

Roh, Nahyeon (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Yee, Kwanjung (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
Publication Information
Transactions of the KSME C: Technology and Education / v.2, no.1, 2014 , pp. 29-37 More about this Journal
Abstract
In this study, analyzed the aerodynamic characteristics of Kline-Fogleman airfoils and wings with those more efficiency at low Reynolds number. It was found that lift to drag ratio is enhanced in the range of Reynolds number below $2.4{\times}10^5$, especially, can be improved up to 26% at Reynolds number is $1{\times}10^4$. It was confirmed that the most advantage case in terms of lift-to-drag ratio is Middle case and lift-to-drag ratio is improved to 20% at 80% of the wing area is Kline-Folgeman airfoil. At this time, endurance time increase to 12%. Also taking the structural stability of the wing and lift-to-drag improvement into account, designed to be from 50% to 80% the size of the Kline-Fogleman Airfoil would be advantageous.
Keywords
Kline-Fogleman Airfoil; Backward-facing Step; Low Reynolds Number; Lift-of-Darg Ratio; Micro Air Vehicles;
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