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Aerodynamic Noise

Published online by Cambridge University Press:  28 July 2016

G. M. Lilley
G. M. Lilley*
Affiliation:
College of Aeronautics
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Extract

The heading aerodynamic noise includes all cases where sound is generated by fluid flows. It includes aeolian harps, edge tones and related phenomena as well as vortex, boundary layer, wake and jet noise. In the strict sense it does not include propeller noise and the direct noise generated by; bodies in motion. However, in view of their importance as sources of aircraft noise some of their more important aspects will be discussed briefly and compared with the similar properties of pure aerodynamic noise.

In general it is audible aerodynamic noise which is of major interest at present, but it would be unwise to neglect entirely the ultrasonic aspects. These have received little attention as yet.

Type
Acoustics-Aircraft Noise
Information
The Aeronautical Journal , Volume 58 , Issue 520 , April 1954 , pp. 235 - 239
Copyright
Copyright © Royal Aeronautical Society 1954

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