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Teplofizika vysokikh temperatur, 2004, Volume 42, Issue 1, Pages 83–90 (Mi tvt1494)  
Heat and Mass Transfer and Physical Gasdynamics

The difference in turbulent diffusion between the active and passive scalars in a thermally stably stratified medium

A. F. Kurbatskiiab

a Novosibirsk State University
b Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
Full-text PDF (1341 kB)
Abstract: The difference in the turbulent diffusion between the active (heat) and passive (mass) scalars in a thermally stably stratified medium is investigated. The axisymmetric problem is treated on the formation of a turbulent circulation flow above a heated disk and on the turbulent diffusion of a passive scalar (impurity) from a continuous surface source in a stably stratified medium. The results indicate that the thermal stratification causes appreciable differences in the coefficients of turbulent transfer between the active (heat) and passive (mass) scalars. This means that the assumption of the identity of the coefficient of turbulent diffusion of heat and mass, employed in conventional models of turbulence, produces significant errors in estimating the heat and mass transfer in a thermally stably stratified medium.
Received: 28.01.2003
English version:
High Temperature, 2004, Volume 42, Issue 1, Pages 79–87
DOI: https://doi.org/10.1023/B:HITE.0000020095.55992.1a
Document Type: Article
UDC: 532.517.4
Language: Russian
Citation: A. F. Kurbatskii, “The difference in turbulent diffusion between the active and passive scalars in a thermally stably stratified medium”, TVT, 42:1 (2004), 83–90; High Temperature, 42:1 (2004), 79–87
Citation in format AMSBIB
\Bibitem{Kur04}
\by A.~F.~Kurbatskii
\paper The difference in turbulent diffusion between the active and passive scalars in a thermally stably stratified medium
\jour TVT
\yr 2004
\vol 42
\issue 1
\pages 83--90
\mathnet{http://mi.mathnet.ru/tvt1494}
\transl
\jour High Temperature
\yr 2004
\vol 42
\issue 1
\pages 79--87
\crossref{https://doi.org/10.1023/B:HITE.0000020095.55992.1a}
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