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A mixture model for the PDF of a diffusing scalar in a turbulent flow

โœ Scribed by T.P. Schopflocher; P.J. Sullivan

Book ID
114378086
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
399 KB
Volume
36
Category
Article
ISSN
1352-2310

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๐Ÿ“œ SIMILAR VOLUMES

A composite PDF of scalar concentration
A composite PDF of scalar concentration in turbulent flows
โœ T.P. Schopflocher; P.J. Sullivan ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 109 KB

Experimental plume data and physical arguments are used to make the case for a composite probability density function to describe scalar concentration at large distances from the source. High concentration tails of the PDF are shown to be well described by a generalized Pareto distribution.

A composite model for the conserved scal
A composite model for the conserved scalar pdf
โœ E. Effelsberg; N. Peters ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 451 KB

A parametric expression for the conserved scalar probability density function (pdf) is derived on the basis of a physical interpretation of the turbulent signal. The scalar signal is split into three parts: a fully turbulent part, a superlayer part, and a outer flow part. Each part is represented by