Abstract
Ray tracing and parabolic equation methods have been used to study the properties of acoustic waves transmitted through turbulent velocity fields. A numerical simulation permits individual realizations of the turbulent field, which then allow, if desired, an ensemble averaging of the fields. Two flows have been considered, 2D isotropic turbulence, and a 2D mixing layer.The following complementary aspects are developed: the occurrence of caustics, the reinforced or weakened zones of the acoustic field, the eigenrays between a source and a receiver, and the associated travel times, variances, and scintillation index.
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© 1991 Springer Science+Business Media Dordrecht
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Juvé, D., Blanc-Benon, P., Comte-Bellot, G. (1991). Transmission of acoustic waves through mixing layers and 2D isotropic turbulence. In: Metais, O., Lesieur, M. (eds) Turbulence and Coherent Structures. Fluid Mechanics and Its Applications, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-7904-9_23
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DOI: https://doi.org/10.1007/978-94-015-7904-9_23
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