Turbulent transport of a passive scalar field

James C. Hill, Charles A. Petty

Research output: Contribution to journalArticle

  • 4 Citations

Abstract

Several statistical theories of the transport of a passive scalar quantity make use of a Green's function and statistical properties of the fluid velocity field. The theories are applied to the problems of mean gradient transport in a turbulent fluid and of turbulent transport to a wall or a fluid interface. For the case of mass transfer by a uniform mean concentration gradient in homogeneous turbulence, a weak mixing hypothesis leads to results similar to those of Kraichnan's direct interaction approximation (DIA). Further use of a smoothing hypothesis leads to an algebraic expression for the eddy diftusivity which compares well with the DIA and with laboratory experiments.

LanguageEnglish (US)
Pages413-432
Number of pages20
JournalChemical Engineering Communications
Volume152-53
StatePublished - 1996

Profile

Fluids
Green's function
Turbulence
Mass transfer
Experiments

Keywords

  • Passive scalar field
  • Transport
  • Turbulence

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Turbulent transport of a passive scalar field. / Hill, James C.; Petty, Charles A.

In: Chemical Engineering Communications, Vol. 152-53, 1996, p. 413-432.

Research output: Contribution to journalArticle

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