The dynamics of an edge-flame in a mixing layer

Vadim N. Kurdyumov, Moshe Matalon

Research output: Contribution to journalConference article

Abstract

The dynamics of an edge-flame in a mixing layer is considered. The flame has a tribrachial structure that consists of a lean premixed segment leaning towards the oxidizer-side, a rich premixed segment leaning towards the fuel-side and a diffusion flame trailing behind. The edge of the flame is generally stabilized by conductive heat losses to the plate separating the fuel and oxidizer stream, and stands at a well defined distance from the plate. Within the context of a diffusive-thermal model, we describe numerically the steady and unsteady behavior of the flame. Our objective is to systematically identify the conditions for the onset of oscillations and examine, in particular, the influence of differential and preferential diffusion, mixture-strength, flow rate and radiative heat losses on the onset of the instability.

Original languageEnglish (US)
JournalInternational Symposium on Advances in Computational Heat Transfer
DOIs
StatePublished - Jan 1 2008
Externally publishedYes
EventInternational Symposium on Advances in Computational Heat Transfer, CHT 2008 - Marrakesh, Morocco
Duration: May 11 2008May 16 2008

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Heat losses
flames
oxidizers
Flow rate
heat
diffusion flames
flow velocity
oscillations
Hot Temperature

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering
  • Condensed Matter Physics
  • Computer Science Applications

Cite this

The dynamics of an edge-flame in a mixing layer. / Kurdyumov, Vadim N.; Matalon, Moshe.

In: International Symposium on Advances in Computational Heat Transfer, 01.01.2008.

Research output: Contribution to journalConference article

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