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Length-scale distributions of the concentration pulsations of a passive impurity in a homogeneous turbulent flow

  • Heat and Mass Transfer in Turbulent Flows
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Journal of Engineering Physics and Thermophysics Aims and scope

Abstract

A relation for calculating the probability density function f λ t (ϕ) of the length scales of a passive concentration field in homogeneous turbulence has been obtained by consideration of the joint statistics of the concentration field and its gradient. The closed equation derived for f λ t (ϕ) has been solved numerically using the data of direct numerical modeling of homogeneous turbulence for the mean characteristics involved in the equation as the coefficients. The results obtained for different values of the Schmidt number have been compared.

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Authors and Affiliations

  1. A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus

    V. A. Babenko & A. D. Chornyi

Authors
  1. V. A. Babenko
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  2. A. D. Chornyi
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__________

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 6, pp. 131–142, November–December, 2005.

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Babenko, V.A., Chornyi, A.D. Length-scale distributions of the concentration pulsations of a passive impurity in a homogeneous turbulent flow. J Eng Phys Thermophys 78, 1181–1193 (2005). https://doi.org/10.1007/s10891-006-0052-y

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  • DOI: https://doi.org/10.1007/s10891-006-0052-y

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