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Title: Effect of turbulence on sound radiation by vortex-body interaction
Authors: Zheng, TH
Vatistas, GH
Tang, SK 
Keywords: Sound radiation
Vortex model
Vortex-body interaction
Issue Date: 2009
Publisher: World Scientific Publ Co Pte Ltd
Source: Journal of computational acoustics, 2009, v. 17, no. 1, p. 71-81 How to cite?
Journal: Journal of Computational Acoustics 
Abstract: This study examines the sound generated by the interaction between turbulent vortices and solid bodies, and its propagation in a nonuniform flow. Single vortex encounters with a flat plate and a nonrotating cylinder are considered. The solutions show that as the turbulence intensity increases, the sound radiated by the vortex-body interaction is strengthened while the effect of the mean flow speed on the sound waves weakens. The sound profile and sound directivity do not change with the Reynolds number. Neglecting turbulence in vortices will not affect the prediction of the fundamental properties of the radiated sound waves; however, it will underestimate the magnitude of the produced sound.
ISSN: 0218-396X
DOI: 10.1142/S0218396X09003860
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