Passive Scalars in Turbulent Flows

Passive scalar behavior is important in turbulent mixing, combustion, and pollution and provides impetus for the study of turbulence itself. The conceptual framework of the subject, strongly influenced by the Kolmogorov cascade phenomenology, is undergoing a drastic reinterpretation as empirical evi...

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Bibliographic Details
Published inAnnual review of fluid mechanics Vol. 32; no. 1; pp. 203 - 240
Main Author Warhaft, Z
Format Journal Article
LanguageEnglish
Published Palo Alto, CA 94303-0139 Annual Reviews 01.01.2000
4139 El Camino Way, P.O. Box 10139 Annual Reviews, Inc
USA
Subjects
anisotropy
Boundary layer and shear turbulence
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Physics
small-scale intermittency
temperature fluctuations
Thick shear flows
turbulence
Turbulent flows, convection, and heat transfer
turbulent mixing
Statistical analysis
Reviews
Turbulent flow
Anisotropy
Probability density function
Temperature fluctuation
Turbulent mixing
Turbulence structure
Variance
Scalar fields
Intermittency
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Summary:Passive scalar behavior is important in turbulent mixing, combustion, and pollution and provides impetus for the study of turbulence itself. The conceptual framework of the subject, strongly influenced by the Kolmogorov cascade phenomenology, is undergoing a drastic reinterpretation as empirical evidence shows that local isotropy, both at the inertial and dissipation scales, is violated. New results of the complex morphology of the scalar field are reviewed, and they are related to the intermittency problem. Recent work on other aspects of passive scalar behavior-its spectrum, probability density function, flux, and variance-is also addressed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:0066-4189
1545-4479
DOI:10.1146/annurev.fluid.32.1.203