Abstract
A physicomathematical model of flame propagation over a gas suspension composed of a mixture of gases (oxidizing, combustible, and inert components) and the particles of a condensed material that reacts heterogeneously with the oxidizing component is formulated. Numerical simulations are used to obtain a dependence of the flame velocity on the parameters related to the mass concentration of the particles, the particle size, the activation energy of a heterogeneous reaction on the particle surface, the heat of the heterogeneous reaction, and the mass exchange of the particles. Depending on the ratio of the dispersed-phase parameters, the flame velocity in this medium can increase severalfold in comparison with the flame velocity in a dust-free gas mixture or decrease. In the latter case, the effect of the particles is similar to the effect of the inert dispersed phase.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ya. B. Zel’dovich, G. I. Barenblatt, V. B. Librovich, and G. M. Makhviladze,Mathematical Theory of Combustion and Explosion, Plenum, New York (1985).
V. I. Lisitsin, É. N. Rumanov, and B. I. Khaikin, “Induction period upon ignition of a particle aggregate,”Fiz. Goreniya Vzryva,7, No. 1, 3–6 (1971).
I. V. Atamanova, I. G. Dik, and A. Yu. Krainov, “Induction period of a nonmonodisperse aggregate,” in:Combustion in Heterogeneous and Gaseous Media: Proc. IX All-Union Symp. on Combustion and Explosion [in Russian], Chernogolovka (1989), pp. 75–77.
V. N. Vilyunov,The Theory of Ignition of Condensed Materials [in Russian], Nauka, Moscow (1984).
V. I. Lisitsin, A. A. Pirozhenko, and V. N. Vilyunov, “Induction period upon ignition of a dispersed system,” in:Combustion and Explosion [in Russian], Nauka, Moscow (1972), pp. 186–190.
I. G. Dik and A. Yu. Krainov, “Ignition regimes of a gaseous suspension in a tank with hot walls,”Fiz. Goreniya Vzryva,20, No. 5, 56–61 (1972).
I. G. Dik, A. Yu. Krainov, and A. I. Makarov, “Ignition of a gaseous suspension in a cavity with hot radiating walls,”Fiz. Goreniya Vzryva,26, No. 5, 20–24 (1990).
A. Yu. Krainov, “Ignition of a nonuniform cloud of particles by a radiant flux,”Fiz. Goreniya Vzryva,32, No. 4, 19–24 (1996).
E. I. Gubin and I. G. Dik, “Flame propagation over a dusty gas,”Fiz. Goreniya Vzryva,23, No. 6, 25–29 (1987).
I. G. Dik, E. I. Gubin, and A. Yu. Krainov, “Unsteady interaction of a combustion wave with a dust cloud,”Inzh.-Fiz. Zh.,55, No. 2, 236–243 (1988).
E. I. Gubin, I. G. Dik, and A. Yu. Krainov, “Inhibition of gas flames by thermally decomposing compositions,”Fiz. Goreniya Vzryva,25, No. 2, 57–62 (1989).
A. Yu. Krainov and V. A. Shaurman, “Inhibition of gas flame by spray,” in:Chemical Gasdynamics and Combustion of Energetic Materials: Int. Workshop-95, Tomsk (1995), p. 76.
A. Yu. Krainov and V. A. Shaurman, “Inhibition of gas flame by spray,”Fiz. Goreniya Vzryva,32, No. 4, 55–61 (1996).
D. A. Frank-Kamenetskii,Diffusion and Heat Transfer in Chemical Kinetics [in Russian], Nauka, Moscow (1987).
Handbook on Heat Exchangers [in Russian], Vol. 2, Énergoatomizdat, Moscow (1987).
V. V. Pomerantsev (ed.),Problems on Combustion Theory (Manual) [in Russian], Énergoatomizdat, Leningrad (1983).
V. V. Pomerantsev (ed.),Fundamentals of Practical Combustion Theory (Manual) [in Russian], Énergoatomizdat, Leningrad (1986).
Author information
Authors and Affiliations
Additional information
Translated fromFizika Goreniya i Vzryva, Vol. 36, No. 2, pp. 3–9, March–April, 2000.
Rights and permissions
About this article
Cite this article
Krainov, A.Y. Modeling of flame propagation in a mixture of combustible gases and particles. Combust Explos Shock Waves 36, 157–163 (2000). https://doi.org/10.1007/BF02699353
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02699353