Geodesic
On the influence of the fuel concentration in a hybrid gas-suspension on the speed of the combustion front propagation
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 4 (2015), pp. 55-63 Cet article a éte moissonné depuis la source Math-Net.Ru

Voir la notice de l'article

A physico-mathematical model of combustion of the hybrid gas suspension with allowance for the heat expansion of the gas mixture and the movement of the phases is presented. Distributions of medium parameters in the combustion front are presented. Results of the numerical study of the dependence of the combustion front velocity in the hybrid gas suspension on the concentration of the gas fuel in the mixture, size of the reacting particles, and the mass concentration of the particles. The presence of reacting particles of the dispersed phase decreases the combustion rate at large values of fuel concentration in the gas phase. This occurs due to the fact that heated particles decrease the temperature in the front of the flame. They also take a part of the oxidizer from the gas phase for the reaction. Since the thermal effect from their combustion is lower than that of the reaction in the gas phase, this also leads to a decrease in the combustion rate. With a decrease in the concentration of the fuel, the presence of small-size reacting particles leads to an increase in the combustion rate in comparison with the case of combustion in a gas mixture with out particles. It is explained by the increase in the general heat effect of combustion reactions of the gas and dispersible fuel.
Keywords: hybrid gas suspension, laminar flame
Mots-clés : reactant, combustion rate. 
@article{VTGU_2015_4_a6,
     author = {A. A. Dement'ev and A. Yu. Krainov and K. M. Moiseeva},
     title = {On the influence of the fuel concentration in a hybrid gas-suspension on the speed of the combustion front propagation},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {55--63},
     year = {2015},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2015_4_a6/}
}
TY  - JOUR
AU  - A. A. Dement'ev
AU  - A. Yu. Krainov
AU  - K. M. Moiseeva
TI  - On the influence of the fuel concentration in a hybrid gas-suspension on the speed of the combustion front propagation
JO  - Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika
PY  - 2015
SP  - 55
EP  - 63
IS  - 4
UR  - http://geodesic.mathdoc.fr/item/VTGU_2015_4_a6/
LA  - ru
ID  - VTGU_2015_4_a6
ER  - 
%0 Journal Article
%A A. A. Dement'ev
%A A. Yu. Krainov
%A K. M. Moiseeva
%T On the influence of the fuel concentration in a hybrid gas-suspension on the speed of the combustion front propagation
%J Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika
%D 2015
%P 55-63
%N 4
%U http://geodesic.mathdoc.fr/item/VTGU_2015_4_a6/
%G ru
%F VTGU_2015_4_a6
A. A. Dement'ev; A. Yu. Krainov; K. M. Moiseeva. On the influence of the fuel concentration in a hybrid gas-suspension on the speed of the combustion front propagation. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 4 (2015), pp. 55-63. http://geodesic.mathdoc.fr/item/VTGU_2015_4_a6/

[1] Korol'chenko A. Ya., Pozharovzryvoopasnost' promyshlennoy pyli, Khimiya Publ., M., 1986, 216 pp. (in Russian)

[2] Taubkin S. I., Taubkin I. S., Pozharo- i vzryvoopasnost' pylevidnykh materialov i tekhnologicheskikh protsessov ikh pererabotki, Khimiya Publ., M., 1976, 264 pp. (in Russian)

[3] (data obrashcheniya: 20.08.2012)

[4] Frank-Kamenetskiy D. A., Diffuziya i teploperedacha v khimicheskoy kinetike, Nauka Publ., M., 1987, 492 pp. (in Russian)

[5] Merzhanov A. G., Khaikin B. I., Shkadinskii K. G., “Establishment of steady flame propagation when igniting a gas by a heated surface”, Journal of Applied Mechanics and Technical Physics, 1969, no. 5(10), 725–730 | MR

[6] Shkadinskii K. G., Barzykin V. V., “Hot-surface ignition of gases with allowance for diffusion and hydrodynamics”, Combustion, Explosion, and Shock Waves, 4:2 (1968), 100–104 | DOI

[7] Dement'ev A. A., Krainov A. Yu., “On the problem of laminar flame propagation in a gas with an inert dust”, Combustion, Explosion, and Shock Waves, 47:4 (2011), 436–441 | DOI | MR