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Fizika Goreniya i Vzryva, 2015, Volume 51, Issue 5, Pages 13–21
DOI: https://doi.org/10.15372/FGV20150502
(Mi fgv255)
 

On the correlation of inverted flame blow-off limits with the boundary velocity gradient at the flame holder surface

Yu. L. Shoshin, L. P. H. de Goey

Mechanical Engineering Den Dolech 2, Eindhoven University of Technology, 5600MB, Eindhoven, The Netherlands
Abstract: Conductive heat losses from the base of a lean methane–air inverted flame stabilized behind the trailing edge of a thin rod have been experimentally evaluated. The results favor the view that the heat losses to the flame holder play a crucial role in the inverted flame stabilization and blow-off. Simple estimations have been performed, which indicate that the well-established correlation between the mixture composition and the boundary velocity gradient at the flame holder, usually considered as a proof of the flame stretch theory of blow-off, can be explained without involving the flame stretch concept. The suggested explanation of this correlation is based on the assumption that the heat loss to the flame holder is the main factor that determines the inverted flame blow-off behavior and on the similarity between the mechanisms of energy and momentum diffusion in gases $(\mathrm{Pr}\approx1)$.
Keywords: inverted flame, flame stabilization, blow-off, boundary velocity gradient.
Received: 16.04.2014
Revised: 17.11.2014
English version:
Combustion, Explosion and Shock Waves, 2015, Volume 51, Issue 5, Pages 520–527
DOI: https://doi.org/10.1134/S0010508215050020
Bibliographic databases:
Document Type: Article
UDC: 533.656:662.969
Language: Russian
Citation: Yu. L. Shoshin, L. P. H. de Goey, “On the correlation of inverted flame blow-off limits with the boundary velocity gradient at the flame holder surface”, Fizika Goreniya i Vzryva, 51:5 (2015), 13–21; Combustion, Explosion and Shock Waves, 51:5 (2015), 520–527
Citation in format AMSBIB
\Bibitem{ShoDe 15}
\by Yu.~L.~Shoshin, L.~P.~H.~de Goey
\paper On the correlation of inverted flame blow-off limits with the boundary velocity gradient at the flame holder surface
\jour Fizika Goreniya i Vzryva
\yr 2015
\vol 51
\issue 5
\pages 13--21
\mathnet{http://mi.mathnet.ru/fgv255}
\crossref{https://doi.org/10.15372/FGV20150502}
\elib{https://elibrary.ru/item.asp?id=24346898}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2015
\vol 51
\issue 5
\pages 520--527
\crossref{https://doi.org/10.1134/S0010508215050020}
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