Acoustical Physics

, Volume 58, Issue 4, pp 375–380

Effect of external actions on the characteristics of vortex sound

Acoustical Ecology. Noise and Vibration

Abstract

The dependence of the characteristics of vortex sound caused by an air flow around a rigid cylinder on various factors, including the turbulence of the incident flow, the inhomogeneity of the cylinder surface, and the sound radiation of an external source, is experimentally investigated. Measurements have made it possible to specify the mechanism of vortex sound radiation under the action of external factors, to relate the radiation intensity and the drag to the type of air flow around the body, and to propose possible ways of reducing the vortex sound radiation intensity.

Keywords

vortex sound flow turbulence surface inhomogeneity sound radiation drag sound level decrease 

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  1. 1.Andreev Acoustical InstituteMoscowRussia

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