Wind Tunnel Investigation of Aeolian Tones from Rough Surface Cylinders

  • F.-R. Grosche
Conference paper
Part of the IUTAM Symposia book series (IUTAM)


The generation of aeolian tones by a rough cylinder was investigated in a large wind tunnel at Reynolds numbers between 104 and 4 × 104. At low Reynolds numbers, the measured sound pressure level agrees well with predictions for smooth cylinders, but it increases less rapidly with flow velocity at higher Reynolds numbers. This can be exolained by the effects of the surface roughness of the cylinder. The sound radiation could be substantially reduced by means of helical trip wires.


Reynolds Number Wind Tunnel Sound Pressure Level Strouhal Number Sound Radiation 
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Copyright information

© Springer, Berlin Heidelberg 1986

Authors and Affiliations

  • F.-R. Grosche
    • 1
    • 2
  1. 1.DFVLRGöttingenGermany
  2. 2.Karman Institute for Fluid DynamicsBelgium

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