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The role of the wake in the sound scattering by a moving body

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Abstract

The propagation of sound is considered in the vicinity of an axially symmetric body moving in a viscous fluid so that a laminar wake is formed behind it. The sound scattering amplitude is determined as the function of the characteristic parameters of the fluid for an arbitrary ratio between the characteristic size of the body and the sound wavelength. The important role of the wake at high Reynolds numbers is demonstrated, and the specific features of the angular dependence of the scattering amplitude are analyzed.

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Authors and Affiliations

  1. Andreev Acoustics Institute, Russian Academy of Sciences, ul. Shvernika 4, Moscow, 117036, Russia

    V. N. Alekseev & A. G. Semenov

Authors
  1. V. N. Alekseev
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  2. A. G. Semenov
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__________

Translated from Akusticheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 46, No. 6, 2000, pp. 732–739.

Original Russian Text Copyright © 2000 by Alekseev, Semenov.

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Alekseev, V.N., Semenov, A.G. The role of the wake in the sound scattering by a moving body. Acoust. Phys. 46, 641–647 (2000). https://doi.org/10.1134/1.1326717

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  • DOI: https://doi.org/10.1134/1.1326717

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