- Volume 18 Issue 1
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Unsteady Aerodynamic Characteristics depending on Reduced Frequency for a Pitching NACA0012 Airfoil at Rec=2.3×104
- Kim, Dong-Ha (Korean Air R&D Center) ;
- Chang, Jo-Won (Department of Aeronautical Science and Flight Operations, Korea Aerospace University) ;
- Sohn, Myong Hwan (Department of Aerospace and Mechanical Engineering, Cheongju University)
- Received : 2016.04.10
- Accepted : 2017.02.06
- Published : 2017.03.30
Most of small air vehicles with moving wing fly at low Reynolds number condition and the reduced frequency of the moving wing ranges from 0.0 to 1.0. The physical phenomena over the wing dramatically vary with the reduced frequency. This study examines experimentally the effect of the reduced frequency at low Reynolds number. The NACA0012 airfoil performs sinusoidal pitching motion with respect to the quarter chord with the four reduced frequencies of 0.1, 0.2, 0.4 and 0.76 at the Reynolds number
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