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On the modelling of effects of negative production of temperature-fluctuation intensity in the turbulent mixing layer

Published online by Cambridge University Press:  20 April 2006

A. F. Kurbatskii  and
N. N. Yanenko
A. F. Kurbatskii
Affiliation:
Institute of Theoretical and Applied Mechanics, U.S.S.R. Academy of Sciences, Novosibirsk 630090, U.S.S.R.
N. N. Yanenko
Affiliation:
Institute of Theoretical and Applied Mechanics, U.S.S.R. Academy of Sciences, Novosibirsk 630090, U.S.S.R.
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Abstract

Numerical results are presented for the modelling of the spread of heat as a passive scalar contaminant on the basis of a second-order closure model in the mixing layer with an asymmetric mean-temperature profile superimposed on it. Present calculations are in reasonable agreement with experimental data on the region of countergradient transport for heat where the direction of heat diffusion is opposite to the mean gradient diffusion and where the production of temperature fluctuation intensity is negative.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 130 , May 1983 , pp. 453 - 462
Copyright
© 1983 Cambridge University Press

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