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)ofL∕C =3and measurements encompass variations in geometric angle of attack of α =0to 12◦ at a Reynolds number of Rec =1.6×106 (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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CITATION STYLE
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 Lecture Notes in Mechanical Engineering (pp. 45–49). Springer Heidelberg. https://doi.org/10.1007/978-3-662-48868-3_7
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