Multifractal nature of the dissipation field of passive scalars in fully turbulent flows

R. R. Prasad, C. Meneveau, K. R. Sreenivasan

Research output: Contribution to journalArticle

Abstract

We present measurements of the curve of f vs from two-dimensional sections of the "dissipation" field of concentration fluctuations, and from one-dimensional sections of the dissipation field of passive temperature fluctuations, in turbulent jets. The results confirm the universality of the dissipation rate of scalar fluctuations and the applicability of Taylor's hypothesis, and show that the curve of vs is the same for different components of , that the additive properties of f() apply to intersections, and that the intermittency exponent of is considerably higher than that for the turbulent kinetic-energy dissipation.

Original languageEnglish (US)
Pages (from-to)74-77
Number of pages4
JournalPhysical Review Letters
Volume61
Issue number1
DOIs
StatePublished - 1988

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turbulent flow
dissipation
scalars
turbulent jets
intermittency
curves
intersections
energy dissipation
kinetic energy
exponents
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Multifractal nature of the dissipation field of passive scalars in fully turbulent flows. / Prasad, R. R.; Meneveau, C.; Sreenivasan, K. R.

In: Physical Review Letters, Vol. 61, No. 1, 1988, p. 74-77.

Research output: Contribution to journalArticle

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