On stretch-affected flame propagation in vortical flows

B. T. Helenbrook; C. J. Sung; C. K. Law; Wm T. Ashurst

doi:10.1016/0010-2180(95)00153-0

On stretch-affected flame propagation in vortical flows

B. T. Helenbrook, C. J. Sung, C. K. Law, Wm T. Ashurst

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Flame propagation through an array of vortices was studied with a model which incorporated the variation of the local burning velocity with stretch. Assuming incompressible flow, the mean burning velocities were calculated and compared to those of the Huygens limit. It was found that stretch causes a decrease in the mean burning velocity, and a mechanism which explains this trend was identified. The study also demonstrated that, as expected, stretch only has a significant effect on the mean burning velocity for vortices whose size is of the same order as that of the flame thickness.

Original language	English (US)
Pages (from-to)	460-468
Number of pages	9
Journal	Combustion and Flame
Volume	104
Issue number	4
DOIs	https://doi.org/10.1016/0010-2180(95)00153-0
State	Published - Mar 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
General Physics and Astronomy

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10.1016/0010-2180(95)00153-0

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title = "On stretch-affected flame propagation in vortical flows",

abstract = "Flame propagation through an array of vortices was studied with a model which incorporated the variation of the local burning velocity with stretch. Assuming incompressible flow, the mean burning velocities were calculated and compared to those of the Huygens limit. It was found that stretch causes a decrease in the mean burning velocity, and a mechanism which explains this trend was identified. The study also demonstrated that, as expected, stretch only has a significant effect on the mean burning velocity for vortices whose size is of the same order as that of the flame thickness.",

author = "Helenbrook, {B. T.} and Sung, {C. J.} and Law, {C. K.} and Ashurst, {Wm T.}",

note = "Funding Information: This research was supported by the Ofice of Basic Energy Sciences of the Department of Energy.",

year = "1996",

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doi = "10.1016/0010-2180(95)00153-0",

language = "English (US)",

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journal = "Combustion and Flame",

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T1 - On stretch-affected flame propagation in vortical flows

AU - Helenbrook, B. T.

AU - Sung, C. J.

AU - Law, C. K.

AU - Ashurst, Wm T.

N1 - Funding Information: This research was supported by the Ofice of Basic Energy Sciences of the Department of Energy.

PY - 1996/3

Y1 - 1996/3

N2 - Flame propagation through an array of vortices was studied with a model which incorporated the variation of the local burning velocity with stretch. Assuming incompressible flow, the mean burning velocities were calculated and compared to those of the Huygens limit. It was found that stretch causes a decrease in the mean burning velocity, and a mechanism which explains this trend was identified. The study also demonstrated that, as expected, stretch only has a significant effect on the mean burning velocity for vortices whose size is of the same order as that of the flame thickness.

AB - Flame propagation through an array of vortices was studied with a model which incorporated the variation of the local burning velocity with stretch. Assuming incompressible flow, the mean burning velocities were calculated and compared to those of the Huygens limit. It was found that stretch causes a decrease in the mean burning velocity, and a mechanism which explains this trend was identified. The study also demonstrated that, as expected, stretch only has a significant effect on the mean burning velocity for vortices whose size is of the same order as that of the flame thickness.

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EP - 468

JO - Combustion and Flame

JF - Combustion and Flame

IS - 4

ER -

On stretch-affected flame propagation in vortical flows

Abstract

All Science Journal Classification (ASJC) codes

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