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Directional acoustic radiation from a supersonic jet generated by shear layer instability

Published online by Cambridge University Press:  29 March 2006

Christopher K. W. Tam
Christopher K. W. Tam
Affiliation:
Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, Massachusetts
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Abstract

A theory on the generation mechanism of directional acoustic radiation from a supersonic jet is proposed. The theory is based on the concept of instability of the shear layer at the boundary of the jet close to the nozzle. Theoretical prediction of the directional wave pattern is found to agree with shadowgraphic observation.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 46 , Issue 4 , 27 April 1971 , pp. 757 - 768
Copyright
© 1971 Cambridge University Press

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