Abstract
The secret of certain owl species enabling them to fly stealthily is investigated and adapted to the suppression of aeroacoustic noise at the trailing edge of a wing or blade. Two features from the owl are mimicked: the poro-elastic trailing edge in the owl’s feather, and the fibrous canopy structure above the nominal wing surface. Initial modelling and experimental results demonstrate up to 10 dB noise reduction over a wide frequency range without reducing aerodynamic performance.
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Jaworski JW, Peake N (2013) J Fluid Mech 723:456–479
Clark I, Devenport WJ, Jaworski J, Daly C, Peake N, Glegg SA (2014) AIAA Paper 2014-2911
Clark I, Alexander WN, Devenport WJ, Glegg SA, Jaworski J, Daly C, Peake N (2015) AIAA Paper
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© 2016 Springer-Verlag Berlin Heidelberg
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Peake, N. (2016). The Aeroacoustics of the Owl. In: Zhou, Y., Lucey, A., Liu, Y., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48868-3_2
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DOI: https://doi.org/10.1007/978-3-662-48868-3_2
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-48866-9
Online ISBN: 978-3-662-48868-3
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