On the Geometry and Burning Intensity of Bunsen Flames

C. J. Sung, K. M. Yu, Chung King Law

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The geometry and burning intensity of two-dimensional and axisymmetric Bunsen flames are studied by adopting the local stretch* scalar field formulation. Equations governing the geometry of the flame front are derived for both the linear and nonlinear responses to flame stretch. Critical point analysis is employed to examine the flame behavior for various system parameters, such as the Lewis number, Arrhenius number and convective strength. Physical phenomena described include opening of the flame tip and the possible existence of inverted Bunsen flames. The predicted characteristics of the open tip Bunsen flame agree well with previous experimental observation. The use of the local Karlovitz number in assessing the nonlinear effect of stretch is proposed.

Original languageEnglish (US)
Pages (from-to)245-270
Number of pages26
JournalCombustion science and technology
Volume100
Issue number1-6
DOIs
StatePublished - Jan 1 1994

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

Keywords

  • Bunsen flame
  • flame stretch

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