Extended-POD based acoustic analysis of separated aerofoils via simultaneous time-resolved PIV and force measurements

Authors

  • Douglas William Carter University of Southampton, United Kingdom
  • Manuel Ferreira University of Southampton, United Kingdom
  • Bharathram Ganapathisubramani University of Southampton, United Kingdom

DOI:

https://doi.org/10.18409/ispiv.v1i1.140

Abstract

We present a cross-correlation based analysis of the acoustic field generated in the wake of NACA 0012 and NACA 65410 aerofoils at a chord-based Reynolds number Rec = 75000 as obtained from pressure fields reconstructed from a series of planar time-resolved Particle Image Velocimetry (PIV) experiments. The experiments are performed in a water channel facility located at the University of Southampton with an overhead carriage system to allow precise control of the angle of attack α of the aerofoils as well as to mount them to a six-axis force/torque transducer to allow for simultaneous load measurements. Angles of attack in the range 4 < α < 17are explored corresponding to a range of conditions from zero flow separation to fully stalled.

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Published

2021-08-01

Issue

Section

Pressure and Force