Propagation rates and stability modes of low lewis number edge-flames in a counterflow slot burner

D. B. Clayton*, Min Suk Cha, P. D. Ronney

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The propagation rates (Uedge) of single and twin premixed edge-flames were measured as a function of global strain rate (σ) for H2-O2-N2 mixtures with low reactant Lewis number (Le). Stability maps in terms of dimensional strain rate (σ) vs. percent fuel exhibit regions of single and multiple stationary tubes, moving multiple tubes, nearly planar flames, wrinkled flames, and uniformly wrinkled flames. Uedge varied linearly with σ regardless of flame mode. For instance, as edge-flames transition from nearly planar to wrinkled to uniformly wrinkled the propagation rate changes almost linearly. Additionally, the shapes and features of premixed edge flames could be explained based on the combined effects of Lewis number, strain rate, heat losses and thermal expansion.

Original languageEnglish (US)
Title of host publicationWestern States Section/Combustion Institute Spring Meeting 2008
PublisherWestern States Section/Combustion Institute
Pages240-250
Number of pages11
ISBN (Electronic)9781605609874
StatePublished - Jan 1 2008
EventWestern States Section/Combustion Institute Spring Meeting 2008 - Los Angeles, United States
Duration: Mar 17 2008Mar 18 2008

Publication series

NameWestern States Section/Combustion Institute Spring Meeting 2008

Other

OtherWestern States Section/Combustion Institute Spring Meeting 2008
CountryUnited States
CityLos Angeles
Period03/17/0803/18/08

ASJC Scopus subject areas

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

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