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- W2011891629 abstract "Theoretical investigations of wave propagation in random media usually rely on a statistical approach. The interaction between the wave and the medium is expressed in terms of a random refractive index related to the fluctuations of the medium, which has been introduced in the Helmholtz equation. The equations which govern the second and higher moments of the transmitted sound pressure field are then deduced. Using a closure hypothesis for the index fluctuation, solutions may be obtained either by some analytical developments or by numerical integration. It is only recently that studies have been reported that make use of computer generated fields to simulate wave propagation in random media. However they are still limited to scalar random fields. Moreover, in acoustics, the presence of velocity components introduces additional effects of wave convection which cannot be described a priori by such a simplified approach." @default.
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- W2011891629 date "1992-01-01" @default.
- W2011891629 modified "2023-09-27" @default.
- W2011891629 title "Occurrence of Caustics for High Frequency Acoustic Waves Propagating Through Turbulent Fields" @default.
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- W2011891629 doi "https://doi.org/10.1007/978-1-4612-2792-2_27" @default.
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