Lagrangian stochastic simulation of turbulent dispersion of heat markers in a channel flow

A modified Langevin equation is developed to represent the dispersion of heat markers from point sources that originate at different locations in a channel through which a fluid is flowing turbulently. Of particular interest is the description of wall sources. Since a heated (or cooled) wall may be...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2003-03, Vol.46 (6), p.1063-1073
Main Authors: Mito, Y., Hanratty, T.J.
Format: Article
Language:English
Subjects:
Convection and heat transfer
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Physics
Turbulent diffusion
Turbulent flows, convection, and heat transfer
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Summary:A modified Langevin equation is developed to represent the dispersion of heat markers from point sources that originate at different locations in a channel through which a fluid is flowing turbulently. Of particular interest is the description of wall sources. Since a heated (or cooled) wall may be represented as a distribution of point sources (or sinks), these results can be used to describe heat transfer problems which have different configurations of heat transfer surfaces.
ISSN:0017-9310
1879-2189
DOI:10.1016/S0017-9310(02)00362-9