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Proceedings Paper

Propagation of acoustic waves in randomly inhomogeneous media
Author(s): Eugeniusz Soczkiewicz
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Paper Abstract

Propagation of acoustic waves in turbulent media has been studied within the approximation of optical geometry. The standard deviation (sigma) R of fluctuations in the horizontal shift of a wave ray relative to the observation point has been estimated in dependence on the distance ro between the source of a wave and the point of observation, the angle $qq of the ray emission by the source, the mean square fluctuations in the acoustic refractive index of turbulent medium and on the autocorrelation function of refractive index fluctuations. The calculations have been performed for the Gaussian correlation function, the simple exponential one and the von Karman correlation function. It has been stated that in the case of simple exponential correlation function (sigma) R is larger than for the Gaussian one if ro/l >= 4. In the case of von Karman medium inhomogeneities correlation function, values of (sigma) R increase with increasing in values of parameter v of the von Karman function.

Paper Details

Date Published: 4 October 1995
PDF: 7 pages
Proc. SPIE 2643, Acousto-Optics and Applications II, (4 October 1995); doi: 10.1117/12.222771
Show Author Affiliations
Eugeniusz Soczkiewicz, Silesian Technical Univ. (Poland)

Published in SPIE Proceedings Vol. 2643:
Acousto-Optics and Applications II
Antoni Sliwinski; Piotr Kwiek; Bogumil B. J. Linde; A. Markiewicz, Editor(s)

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