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Propagation of sound in turbulent mediaPerturbation methods commonly used to study the propagation of acoustic waves in turbulent media are reviewed. Emphasis is on those techniques which are applicable to problems involving long-range propagation in the atmosphere and ocean. Characteristic features of the various methods are illustrated by applying them to particular problems. It is shown that conventional perturbation techniques, such as the Born approximation, yield solutions which contain secular terms, and which therefore have a relatively limited range of validity. In contrast, it is found that solutions obtained with the aid of the Rytov method or the smoothing method do not contain secular terms, and consequently have a much greater range of validity.
Document ID
19770003378
Document Type
Conference Paper
Authors
Wenzel, A. R.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Publication Information
Publication: Advan. in Eng. Sci., Vol. 3
Subject Category
Acoustics
Funding Number(s)
CONTRACT_GRANT: NAS1-14101
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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