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On the Propagation of Turbulent Jet-Flame in a Closed Vessel
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Abstract
In the stratified charge engine with an auxiliary chamber, the time required for combustion in the main chamber is considered to depend upon the characteristics of the turbulent jet-flame propagating in it. This study has been conducted to explore the controllability of the time required for combustion by changing the characteristics of the turbulent jet-flame. Experiments were performed by using a constant volume combustion chamber which was divided into a primary and a secondary chamber by an orifice plate. The characteristics of the turbulent jet-flame were changed by changing fuel, mixture strength and hole size of the orifice plate.
The experimental results indicate that the time τ required for combustion in the secondary chamber mainly depends upon the jet-flame velocity VF (propagation velocity of the leading front of the jet-flame) and the mixture strength Φ. It is shown that a unique relation exists between VF and (τ SL)−1, were SL is the laminar burning velocity of the mixture, except for rich mixtures of propane-air and n-butane-air.
Citation
Furukawa, J. and Gomi, T., "On the Propagation of Turbulent Jet-Flame in a Closed Vessel," SAE Technical Paper 810777, 1981, https://doi.org/10.4271/810777.Also In
References
- Evans M.W. Scheer M.D. Schoen L.J. Miller E.L. 1949 A study of high velocity flames developed by grid in tubes, Third Symp. on Comb. 168/176
- Kumagi S. Kimura I. 1953 The Effect of turbulence of flame propagation in gases, Fourth Symp. on Comb. 667/669
- Yamazaki K. Iinuma K. 1953 Augmented flames in an engine combustion chamber, Fourth Symp. on Comb. 914/918
- Iinuma K. 1977 A study of turbulent flame propagation in a closed vessels, Automotive Exhaust Clarification Study Group, Category III-l
- Furukawa J. Mizumura S. Yoshida M. Gomi T. 1978 The fundamental research of combustion in the stratified charge engine with an auxiliary chamber, Seventeenth congress of FISITA, 1277/1287
- Hirano T. Nogi U. Mashiko I. Nakazawa T. 1976 Electrical probe measurements in propagating flames Bull, of Jap. Soc. of Mech. Engr. 19 , 195/202
- Ballal D.R. Lefebvre A.H. 1974 Turbulence effects on enclosed flame Acta Astronautica 1 , 471/483
- Bird R.B. Stewaet W.E. Ligh-foot E.N. 1960 Transport Phenomena, John Wiley & Sons, Inc. New York Chapter 5
- Andrews G.E. Bradley D. 1972 The burning velocity of methane-air mixtures, Comb. Flame 19 , 275/288
- Palm-Leis A. Strehlow R.A. 1969 On the propagation of turbulent flames, Comb. Flame 13 , 111/129