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Radiative forces acting on point sources moving in a stratified fluid

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Abstract

Both components of the total radiative force acting on uniformly moving mass sources in a stratified incompressible fluid are calculated. These forces are related to the emission of internal gravity waves. One component of the radiative force is directed opposite to the direction of motion. This is the well-known wave drag force. Different useful representations of this component are derived for several typical point sources (monopole, dipole, and others). The other component, directed perpendicular to the direction of the motion, is calculated for the first time. The results obtained are extended to the case of rotating media, where internal inertial-gravity waves exist.

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Authors and Affiliations

  1. Institute of Problems in Mechanics, Russian Academy of Sciences, 117526, Moscow, Russia

    V. A. Gorodtsov & S. N. Reznik

  2. Institute of Applied Physics, Russian Academy of Sciences, 603600, Nizhnii Novgorod, Russia

    Yu. A. Stepanyants

Authors
  1. V. A. Gorodtsov
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  2. S. N. Reznik
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  3. Yu. A. Stepanyants
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Zh. Éksp. Teor. Fiz. 112, 507–523 (August 1997)

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Gorodtsov, V.A., Reznik, S.N. & Stepanyants, Y.A. Radiative forces acting on point sources moving in a stratified fluid. J. Exp. Theor. Phys. 85, 276–284 (1997). https://doi.org/10.1134/1.558275

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  • DOI: https://doi.org/10.1134/1.558275

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