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A Study of the Flow Field Surrounding Interacting Line Fires

Authors :
Trevor Maynard
Marko Princevac
David R. Weise
Source :
Journal of Combustion, Vol 2016 (2016)
Publication Year :
2016
Publisher :
Wiley, 2016.

Abstract

The interaction of converging fires often leads to significant changes in fire behavior, including increased flame length, angle, and intensity. In this paper, the fluid mechanics of two adjacent line fires are studied both theoretically and experimentally. A simple potential flow model is used to explain the tilting of interacting flames towards each other, which results from a momentum imbalance triggered by fire geometry. The model was validated by measuring the velocity field surrounding stationary alcohol pool fires. The flow field was seeded with high-contrast colored smoke, and the motion of smoke structures was analyzed using a cross-correlation optical flow technique. The measured velocities and flame angles are found to compare reasonably with the predicted values, and an analogy between merging fires and wind-blown flames is proposed.

Subjects

Subjects :
Heat
QC251-338.5

Details

Language :
English
ISSN :
20901968 and 20901976
Volume :
2016
Database :
Directory of Open Access Journals
Journal :
Journal of Combustion
Publication Type :
Academic Journal
Accession number :
edsdoj.f27569a55b804f31a5fef121a4d160b4
Document Type :
article
Full Text :
https://doi.org/10.1155/2016/6927482