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Concentration fluctuations and particle self-diffusion in monodispersed systems

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Abstract

The dispersion of a random field of the volume concentration is calculated on the basis of the thermodynamic theory of flucturations in limiting situations of finely and coarsely dispersed systems. A representation for the spectral density of this field is written, and concentration dependences of Brownian and isotropic pseudoturbulent self-diffusion of particles in the indicated situations are found.

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Authors
  1. Yu. A. Buevich
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Additional information

Ural State University, Ekaterinburg. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 65, No. 1, pp. 39–47, July, 1993.

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Buevich, Y.A. Concentration fluctuations and particle self-diffusion in monodispersed systems. J Eng Phys Thermophys 65, 649–657 (1993). https://doi.org/10.1007/BF00862423

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  • DOI: https://doi.org/10.1007/BF00862423

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