Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/73594
Title: Aerodynamics of an airfoil at ultra-low reynolds number
Authors: Alam, MM 
Zhou, Y 
Yang, H 
Issue Date: 2010
Publisher: Springer
Source: In J Peinke, M Oberlack & A Talamelli (Eds.), Progress in turbulence III : proceedings of the iTi Conference in Turbulence 2008, p.79-82. Berlin ; New York: Springer, 2010 How to cite?
Abstract: A comprehensive experimental study is conducted of the aerodynamic characteristics of an NACA0012 airfoil over a large range of angle (α) of attack and low- to ultra-low cord Reynolds numbers, 5.3×103 - 5.1×104, which is of both fundamental and practical importance. While the mean and fluctuating lift and drag coefficients were measured using a load cell, the detailed flow structure is documented using particle image velocimetry and laser-induced fluorescence flow visualization. CD increases monotonically from α = 0° to 90°, whilst CL grows from 0 to its maximum at α = 45° and then drops. The near wake characteristics examined were found to be consistent with the force measurements, including the vortex formation length, wake width, spanwise vorticity, wake bubble size and wavelength of K-H vortices.
Description: iTi Conference on Turbulence 2008 in Bertinoro, Italy
URI: http://hdl.handle.net/10397/73594
ISBN: 9783642022258 (electronic bk.)
9783642022241 (print)
DOI: 10.1007/978-3-642-02225-8_18
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