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Investigation of concentration effects on the flame acceleration in vented channels. J Loss Prev Process Ind 2015. [DOI: 10.1016/j.jlp.2015.04.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jalali A, Egolfopoulos FN, Tsotsis TT. Study of Silane Decomposition during the Combustion of Renewable Natural Gas. Ind Eng Chem Res 2014. [DOI: 10.1021/ie502039x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aydin Jalali
- Department
of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453, United States
| | - Fokion N. Egolfopoulos
- Department
of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453, United States
| | - Theodore T. Tsotsis
- Mork
Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089-1211, United States
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Bradley D, Lau AKC, Lawes M, Smith FT. Flame stretch rate as a determinant of turbulent burning velocity. ACTA ACUST UNITED AC 1997. [DOI: 10.1098/rsta.1992.0012] [Citation(s) in RCA: 197] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A rational basis for correlating turbulent burning velocities is shown to involve the product of the Karlovitz stretch factor and the Lewis number. A generalized expression is derived to show how flame stretch is related to the velocity field. A new dimensionless correlation of experimental values of turbulent burning velocities is presented. Dimensionless groups also are used in correlations of laminar and turbulent flame extinction stretch rates. A distribution function of stretch rates in turbulent flames, based on an earlier one of Yeung
et al
., is proposed and the experimental data are well predicted by a theory based on flamelet extinction by flame stretch with this distribution. Uncertainties arise concerning the role of negative stretch rate. Laminar flamelet modelling of complex combustion appears to have a broader validity than might be expected and some explanation for this is offered.
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Affiliation(s)
- D. Bradley
- Department of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, U. K
| | - A. K. C. Lau
- Department of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, U. K
| | - M. Lawes
- Department of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, U. K
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Laminar premixed flame extinction limits. I. Combined effects of stretch and upstream heat loss in the twin-flame unburnt-to-unburnt opposed flow configuration. Proc Math Phys Eng Sci 1997. [DOI: 10.1098/rspa.1996.0099] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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