Scaling of vortex-induced flame stretch profiles

T. W. Lee

doi:10.1080/00102209408935482

Scaling of vortex-induced flame stretch profiles

T. W. Lee

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

2 Scopus citations

Abstract

Scaling relations for flame stretch profiles (i.e. spatial distribution of flame stretch) induced by a vortex are provided in that the magnitude of the flame stretch profiles is found to scale with the maximum flame stretch (K*) determined by both the characteristic flow strain and flame curvature contribution, while the spatial extent of the flame stretch profiles scales as (r² _mK*/S_L) where r_mand S_Lare the vortex radius and laminar flame speed, respectively. In addition, temporal variations in flame stretch profiles can be approximated by assigning a parabolic function for the time-dependent peak flame stretch and appropriately scaling the magnitude and spatial extent of flame stretch profiles.

Original language	English (US)
Pages (from-to)	301-307
Number of pages	7
Journal	Combustion science and technology
Volume	102
Issue number	1-6
DOIs	https://doi.org/10.1080/00102209408935482
State	Published - Dec 1 1994

Keywords

Flame stretch
scaling
vortex

ASJC Scopus subject areas

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

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10.1080/00102209408935482

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AB - Scaling relations for flame stretch profiles (i.e. spatial distribution of flame stretch) induced by a vortex are provided in that the magnitude of the flame stretch profiles is found to scale with the maximum flame stretch (K*) determined by both the characteristic flow strain and flame curvature contribution, while the spatial extent of the flame stretch profiles scales as (r2 mK*/SL) where rmand SLare the vortex radius and laminar flame speed, respectively. In addition, temporal variations in flame stretch profiles can be approximated by assigning a parabolic function for the time-dependent peak flame stretch and appropriately scaling the magnitude and spatial extent of flame stretch profiles.

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Scaling of vortex-induced flame stretch profiles

Abstract

Keywords

ASJC Scopus subject areas

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