On the Aerodynamic Sound Generated by a Subsonic Flow Past a Circular Cylinder

  • Tur-Mongé, Carlos (Turbulence and Aerodynamics Research Group)
  • Eiximeno, Benet (Barcelona Supercomputing Center)
  • Lehmkuhl, Oriol (Barcelona Supercomputing Center)
  • Rodriguez, Ivette (Turbulence and Aerodynamics Research Group)

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The aerodynamic sound generated by a three-dimensional cylinder on a turbulent flow with Re = 10.000 at M0 = 0.2 and M0 = 0.5 is studied. Compressible large-eddy simulations are performed using an explicit fourth-order spectral element method. The far-field noise generated by the interaction of the cylinder and the turbulent flow is then predicted using the Ffowcs Williams-Hawkings analogy.