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The influence of simple supports on the radiation from turbulent flow near a plane compliant surface

Published online by Cambridge University Press:  28 March 2006

J. E. Ffowcs Williams
J. E. Ffowcs Williams
Affiliation:
Department of Mathematics, Imperial College, London
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Abstract

The paper deals with an extension of previous work on the radiation properties of turbulent flow formed on compliant surfaces. The effect of simple supports is shown to be acoustically equivalent to an extended dipole system of strength equal to the support stress. The dipole radiation is reduced by a transmission factor below that radiated into a uniform environment. A particular example is worked out in detail. That example deals with the case of a single point support on an otherwise homogeneous surface excited by boundary-layer turbulence.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 26 , Issue 4 , December 1966 , pp. 641 - 649
Copyright
© 1966 Cambridge University Press

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References

Ffowcs Williams, J. E. 1963 The noise from turbulence convected at high speed. Phil. Trans. Roy. Soc. A, no. 1061, 255, 469–503.Google Scholar
Ffowcs Williams, J. E. & Lyon, R. H. 1963 The sound radiated from turbulent flows near flexible boundaries. AGAR Dograph on Aerodynamic Noise (ed. G. M. Lilley).
Ffowcs Williams, J. E. 1965 Sound radiation from turbulent boundary layers formed on compliant surfaces. J. Fluid Mech. 22, 347–358.Google Scholar
Lighthill, M. J. 1962 Sound generated aerodynamically, the Bakerian lecture 1961. Proc. Roy. Soc., A 267, 147.Google Scholar
Maidanik, G. 1962 Response of ribbed panels to reverberant acoustic fields. J. Acoust. Soc. Amer. 34, 809.Google Scholar
Maidanik, G.& Kerwin, E.M. 1966 J. Sound and Vib. (In the press.)
Powell, A. 1960 Aerodynamic noise and the plane boundary. J. Acoust. Soc. Amer. 32, 982.Google Scholar