Multiple conditioned analysis of the turbulent stratified flame A

Thabo Stahler, Dirk Geyer*, Gaetano Magnotti, Philipp Trunk, Matthew J. Dunn, Robert S. Barlow, Andreas Dreizler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The sensitivity of lean combustion to stratification level was studied in a turbulent flow field for the turbulent stratified flames configuration. Differential diffusion caused by the flux of species e.g. H2 was identified for all stratification levels. The effect of stratification onto the flame micro-structure was evident in the pre- heat zone and in the reaction zone as shown by the means of the local equivalence ratio. The temperature profiles in this back-supported configuration were more impacted on the reactant side than on the product side by stratification. In contrast equivalence ratios as well as mass fractions of hydrogen were sensitive to stratification on the product side as well as in the reactants.

Original languageEnglish (US)
Pages (from-to)1947-1955
Number of pages9
JournalProceedings of the Combustion Institute
Volume36
Issue number2
DOIs
StatePublished - Jan 1 2017

Keywords

  • Lean-premixed combustion
  • Multiple conditioned data analysis
  • Raman/Rayleigh scattering
  • Stratified flames
  • Turbulent combustion

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry

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