Predictions of soot in laminar diffusion flames

Ian M. Kennedy, Wolfgang Kollmann, J. Y. Chen

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A model for soot formation in diffusion flames is proposed in which a correlation between mixture fraction and soot surface growth rate is used. The correlation is derived from measurements in a stagnation point diffusion flame. The calculation solves the boundary-layer form of the flow equations, which include the continuity equation, momentum, mixture fraction, and the enthalpy equations. The latter equation is included to account for radiation, which earlier studies found to be important in determining the flame temperatures in sooty flames and the rates of soot reactions. Results are presented for two laminar flows. The first is an axisymmetric laminar jet diffusion flame and the second is a Wolfhard-Parker two-dimensional flame. Good agreement has been obtained for both flows without adjustment of the model parameters.

Original languageEnglish (US)
Pages (from-to)1452-1457
Number of pages6
JournalAIAA Journal
Volume29
Issue number9
StatePublished - Sep 1991

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Soot
Laminar flow
Enthalpy
Momentum
Boundary layers
Radiation
Temperature

ASJC Scopus subject areas

  • Aerospace Engineering

Cite this

Kennedy, I. M., Kollmann, W., & Chen, J. Y. (1991). Predictions of soot in laminar diffusion flames. AIAA Journal, 29(9), 1452-1457.

Predictions of soot in laminar diffusion flames. / Kennedy, Ian M.; Kollmann, Wolfgang; Chen, J. Y.

In: AIAA Journal, Vol. 29, No. 9, 09.1991, p. 1452-1457.

Research output: Contribution to journalArticle

Kennedy, IM, Kollmann, W & Chen, JY 1991, 'Predictions of soot in laminar diffusion flames', AIAA Journal, vol. 29, no. 9, pp. 1452-1457.
Kennedy IM, Kollmann W, Chen JY. Predictions of soot in laminar diffusion flames. AIAA Journal. 1991 Sep;29(9):1452-1457.
Kennedy, Ian M. ; Kollmann, Wolfgang ; Chen, J. Y. / Predictions of soot in laminar diffusion flames. In: AIAA Journal. 1991 ; Vol. 29, No. 9. pp. 1452-1457.
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