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http://dx.doi.org/10.5139/JKSAS.2014.42.2.99

Numerical Investigation on Aerodynamic Characteristics of Kline-Fogleman Airfoil at Low Reynolds Numbers  

Roh, Nahyeon (Department of Aerospace Engineering, Pusan National University)
Son, Chankyu (Department of Aerospace Engineering, Pusan National University)
Yee, Kwanjung (Department of Aerospace Engineering, Pusan National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.42, no.2, 2014 , pp. 99-107 More about this Journal
Abstract
In this study, aerodynamic characteristics of Kline-Fogleman airfoils are numerically investigatied which has been widely used in remote control aircraft operating at low Reynolds numbers. The comparison of aerodynamic characteristics was conducted between NACA4415 and Kline-Fogleman airfoil based on NACA4415. ANSYS Fluent was employed with the incompressible assumption and $k-{\omega}$ SST turbulence model. It was found that lift coefficient was significantly enhanced in the range of Reynolds number from $3{\times}10^3$ to $3{\times}10^6$. Especially in the region of Reynolds number below $2.4{\times}10^5$, the lift-to-drag-ratio was improved by 26% using the Kline-Folgeman airfoil compared with NACA4415 airfoil.
Keywords
Kline-Fogleman Airfoil; Backward-facing Step; Low Reynolds Number; Lift-of-Drag Ratio; Micro Air Vehicles;
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