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Type: Conference paper
Title: A comparison of NACA 0012 and NACA 0021 self-noise at low Reynolds number
Author: Laratro, A.J.
Arjomandi, M.
Cazzolato, B.
Kelso, R.
Citation: Lecture Notes in Mechanical Engineering, 2016 / Zhou, Y., Lucey, A.D., Liu, Y., Huang, L. (ed./s), pp.21-25
Publisher: Springer-Verlag
Publisher Place: Berlin
Issue Date: 2016
Series/Report no.: Lecture Notes in Mechanical Engineering
ISBN: 9783662488669
ISSN: 2195-4356
Conference Name: 3rd Symposium on Fluid-Structure-Sound Interactions and Control (5 Jul 2015 - 9 Jul 2015 : Perth, Australia)
Editor: Zhou, Y.
Lucey, A.D.
Liu, Y.
Huang, L.
Statement of
A. Laratro, M. Arjomandi, B. Cazzolato and R. Kelso
Abstract: The self-noise of NACA 0012 and NACA 0021 airfoils are recorded at a Reynolds numbers of 96,000 in an anechoic wind tunnel at an angle-of-attack range of −5∘–40∘. Results suggest that the low angle-of-attack tonal noise of the airfoils behaves differently, with the NACA 0021 producing tones at much higher angles-of-attack but not near 0∘. Noise generated at the onset of stall is subtlely different, with signature of the NACA 0012 forming over a larger angular range compared to the NACA 0021 where the stall signature forms suddenly.
Keywords: Aeroacoustics; Stall noise; Airfoil noise
Rights: © Springer-Verlag Berlin Heidelberg 2016
DOI: 10.1007/978-3-662-48868-3_3
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Mechanical Engineering publications

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