RAYLEIGH SCATTERING MEASUREMENTS OF MIXTURE FRACTION IN A TURBULENT NONREACTING PROPANE JET.

R. W. Schefer*, R. W. Dibble

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Time-and space-resolved measurements of mixture fraction have been made throughout a turbulent nonreacting propane jet issuing into coflowing air using laser Rayleigh scattering. The objective of the measurements has been to obtain a better understanding of the flow structure and mixing process in turbulent variable-density jets where turbulent mixing has been decoupled from the effects of chemical heat release found in highly exothermic reacting jets. The measurements yield probability density distributions of the mixture fraction, from which the means, higher moments, and intermittency are calculated. Time histories of the Rayleigh signal are analyzed to obtain the power spectra and autocorrelations. Comparisons are made with results for other constant and variable-density turbulent jets and the observed differences are discussed.

Original languageEnglish (US)
JournalAIAA Paper
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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