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Visualization of the acoustic excitation of a subsonic jet

Published online by Cambridge University Press:  19 April 2006

S. N. Heavens
S. N. Heavens
Affiliation:
Whittle Laboratory, University of Cambridge, England
Present address: Chloride Silent Power Limited, Astmoor, Runcorn, Cheshire.
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Abstract

The response of a subsonic round jet to internal excitation by an acoustic wave has been examined using flow visualization and noise measurements. The jet was subjected to pulse excitation and to harmonic excitation. In both cases large-scale vortex ring structures were observed in the jet mixing layer. With pulse excitation, interactions between the vortex rings were observed, but no associated noise emission could be detected.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 100 , Issue 1 , 11 September 1980 , pp. 185 - 192
Copyright
© 1980 Cambridge University Press

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