Variable property effects in the analysis of a stagnation point diffusion flame

I. M. Kennedy

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The effect of variations in fluid properties on the analysis of a stagnation point diffusion flame has been studied by means of a numerical calculation. The thermochemistry of the flame was prescribed by an empirical correlation of species concentrations and temperature with a conserved scalar (the fuel atom mass fraction). In this way the mixing process in the diffusion flame was decoupled from the chemical kinetics. Variations in the Schmidt number for the mixture fraction did not have a significant effect on the numerical prediction of the atom mass fraction profile in the flame. However, the assumption of a constant value for ρμ through the methane-air flame caused a significant overprediction of the mixing-layer thickness. An average value of ρμ through the boundary layer yielded satisfactory predictions of the mass fraction profile.

Original languageEnglish (US)
Pages (from-to)2159-2168
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume28
Issue number11
DOIs
StatePublished - 1985
Externally publishedYes

Fingerprint

stagnation point
diffusion flames
Thermochemistry
flames
Atoms
Methane
Reaction kinetics
Boundary layers
Schmidt number
Fluids
thermochemistry
profiles
Air
predictions
atoms
boundary layers
reaction kinetics
methane
scalars
Temperature

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy(all)
  • Mechanical Engineering

Cite this

Variable property effects in the analysis of a stagnation point diffusion flame. / Kennedy, I. M.

In: International Journal of Heat and Mass Transfer, Vol. 28, No. 11, 1985, p. 2159-2168.

Research output: Contribution to journalArticle

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