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Sound propagation in a fluid flowing through an attenuating duct

Published online by Cambridge University Press:  28 March 2006

D. C. Pridmore-Brown
D. C. Pridmore-Brown
Affiliation:
Department of Mathematics, University of Manchester Now at Mechanical Engineering Department, Massachusetts Institute of Technology.
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Abstract

A study is made of the propagation of sound in both a constant gradient shear flow and a turbulent shear flow above a flat surface. Curves are presented showing how, in the case of downstream propagation, the flow gradient tends to channel the sound energy into a narrow layer next to the wall. These results are used in estimating the effect of a flow on the attenuation of sound in a duct with absorbing side walls.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 4 , Issue 4 , August 1958 , pp. 393 - 406
Copyright
© Cambridge University Press

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References

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