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Semiempirical theory of turbulence of inhomogeneous flows with body forces

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Abstract

A closed system of equations for the second moments, determining the turbulent transfer in inhomogeneous flows with body forces, is obtained in the local equilibrium approximation. Taking diffusion and convective transfer into account does not present difficulties, since the expressions obtained for the terms containing the fluctuations of the body forces and transfer terms are preserved. The effect of the external forces is considered for two cases: turbulent motion in a stratified medium and conducting flows in a longitudinal magnetic field. In the latter case the external forces are divergenceless and they therefore do not affect the pressure fluctuations. A single-scale model, in which the transverse scale is taken as the scale in the boundary layer, is considered.

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Authors and Affiliations

  1. Moscow

    V. M. Ievlev & É. E. Son

Authors
  1. V. M. Ievlev
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  2. É. E. Son
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Additional information

Translated from Izvestiya Akademii Nauk SSSS, Mekhanika Zhidkosti i Gaza, No. 3, pp. 33–40, May–June, 1985.

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Ievlev, V.M., Son, É.E. Semiempirical theory of turbulence of inhomogeneous flows with body forces. Fluid Dyn 20, 363–369 (1985). https://doi.org/10.1007/BF01049986

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  • DOI: https://doi.org/10.1007/BF01049986

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