Abstract
Measurements of flow-induced wall-mounted finite airfoil noise have been taken in the Stability Wind Tunnel at Virginia Tech to examine the influence of airfoil three-dimensionality on noise production. The airfoil has an aspect ratio (ratio of airfoil span, L, to chord, C) of \(L/C = 3\) and measurements encompass variations in geometric angle of attack of \(\alpha = 0\) to \(12^\circ \) at a Reynolds number of \(Re_c=1.6 \times 10^6\) (based on chord). The results include far-field acoustic spectra and sound maps taken with a microphone array and reveal contributions of flow at the airfoil tip and wall junction to noise production.
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© 2016 Springer-Verlag Berlin Heidelberg
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Moreau, D.J., Doolan, C.J., Alexander, W.N., Meyers, T.W., Devenport, W.J. (2016). An Experimental Investigation of Wall-Mounted Finite Airfoil Turbulent Boundary Layer Noise. 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_7
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DOI: https://doi.org/10.1007/978-3-662-48868-3_7
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