Aerodynamic noise from wave-turbulence interaction

Chandraker, A. L. ; Munjal, M. L. (1978) Aerodynamic noise from wave-turbulence interaction Proceedings of the Indian Academy of Sciences, Mathematical Sciences, 87A (9). pp. 253-263. ISSN 0370-0089

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In order to estimate the acoustic energy scattered when a unit volume of free turbulence, such as in free jets, interacts with a plane steady sound wave, theoretical expressions are derived for two simple models of turbulence: eddy model and isotropic model. The effect of convection by mean motion of the energy-bearing eddies on the incident sound wave and on the sound generated from wave-turbulence interaction is taken into account. Finally, by means of a representative calculation, the directionality pattern and Mach number dependence of the noise so generated is discussed.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Aeroacoustics; Aerodynamic Noise; Wave-turbulence Interaction
ID Code:75265
Deposited On:24 Dec 2011 15:16
Last Modified:18 May 2016 19:21

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