Advertisement

An Experimental Investigation of Wall-Mounted Finite Airfoil Turbulent Boundary Layer Noise

  • D. J. MoreauEmail author
  • C. J. Doolan
  • W. N. Alexander
  • T. W. Meyers
  • W. J. Devenport
Conference paper
  • 1.7k Downloads
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

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.

Keywords

Airfoil noise Trailing edge noise Tip noise Beamforming 

References

  1. Brooks T, Marcolini M (1986) Airfoil tip vortex formation noise. AIAA J 24(2):246–252CrossRefGoogle Scholar
  2. Devenport WJ, Burdisso RA, Borgoltz A, Ravetta PA, Barone MF, Brown KA, Morton MA (2013) The Kevlar-walled anechoic wind tunnel. J Sound Vib 332:3971–3991CrossRefGoogle Scholar
  3. Moreau DJ, Prime Z, Porteous R, Doolan CJ, Valeau V (2014) Flow-induced noise of a wall-mounted finite airfoil at low-to-moderate Reynolds number. J Sound Vib 333(25):6924–6941CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • D. J. Moreau
    • 1
    Email author
  • C. J. Doolan
    • 1
  • W. N. Alexander
    • 2
  • T. W. Meyers
    • 2
  • W. J. Devenport
    • 2
  1. 1.School of Mechanical and Manufacturing EngineeringUNSWSydneyAustralia
  2. 2.Aerospace and Ocean EngineeringVirginia TechBlacksburgUSA

Personalised recommendations