Phenomenological model of soot production inside a non-buoyant laminar diffusion flame

Legros, G. and Torero, J. L. (2014) Phenomenological model of soot production inside a non-buoyant laminar diffusion flame. Proceedings of the Combustion Institute, 35 3: 2545-2553. doi:10.1016/j.proci.2014.05.038


Author Legros, G.
Torero, J. L.
Title Phenomenological model of soot production inside a non-buoyant laminar diffusion flame
Journal name Proceedings of the Combustion Institute   Check publisher's open access policy
ISSN 1540-7489
1873-2704
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.proci.2014.05.038
Open Access Status
Volume 35
Issue 3
Start page 2545
End page 2553
Total pages 9
Place of publication Philadelphia, PA United States
Publisher Elsevier Inc.
Collection year 2015
Language eng
Formatted abstract
An original phenomenological model for soot production inside a laminar, flat plate boundary layer diffusion flame is presented. The model is compared with experimental measurements conducted in microgravity. For the experiments, the fuel, ethylene, is injected through a flat porous burner into an oxidizer stream flowing parallel to the burner surface. The oxidizer is a mixture of 35% oxygen and 65% nitrogen. The fuel and oxidizer velocities are systematically varied. The analysis of the data shows that the streamwise location of the maximum flame height can be considered an unambiguous characteristic length of the flame as opposed to the maximum visible flame length. Analysis of the streamwise location of the maximum flame height enables to establish the transition between "open-tip" and "closed-tip" behavior as well as scaling laws for the soot volume fraction. A scaled soot volume fraction is found to follow a linear relationship with the streamwise coordinate normalized by the burner length. This correlation appears to be valid for the whole range of conditions investigated, knowing that this range does not cover the blow-off regime.
Keyword Diffusion flame
Microgravity
Soot
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2015 Collection
 
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Created: Fri, 08 Aug 2014, 11:58:59 EST by Julie Hunter on behalf of School of Civil Engineering