Abstract
A study is made of one-dimensional nonstationary problems of the combustion and detonation of aerosuspensions of unitary fuels or propellants, which contain the oxidant as well as the combustible material (gunpowder, high explosives). A numerical analysis is made of the damping of the convective combustion which occurs at relatively low mass concentrations of the fuel; the critical concentration dividing the damped and the detonation regimes is determined. It is shown that the realization of the damped or detonation regime of convective combustion at a given concentration is completely determined by the gas dynamics of the relative motion of the gas and the particles (two-velocity effect), this being governed by the coefficient of friction.
Similar content being viewed by others
Literature cited
P. B. Vainshtein and R. I. Nigmatulin, “Combustion of gas mixtures with particles,” Zh. Prikl. Mekh. Tekh. Fiz., No. 4 (1971).
P. B. Vainshtein, “Radiative flame front in a mixture of a gas with solid particles,” Zh. Prikl. Mekh. Tekh. Fiz., No. 3 (1973).
G. E. Ozerova and A. M. Stepanov, “Influence of radiation on flame propagation through a gas suspension of particles of a solid fuel,” Fiz. Goreniya Vzryva,9, No. 5 (1973).
P. B. Vainshtein and R. I. Nigmatulin, “On homobaric (with homogeneous pressure) pressures of gas suspensions in the presence of physicochemical transformations,” Dokl. Akad. Nauk SSSR,249, No. 1 (1979).
K. K. Ionushas, I. M. Pronicheva, O. M. Todes, A. D. Gol'tsiker, V. I. Vodyanik, and N. P. Kozhushkov, “Development of the flame propagation mechanism in aerodisperse systems,” Fiz. Goreniya Vzryva,15, No. 5 (1979).
P. B. Vainshtein, “Convective combustion of aerosuspensions in fuel that contains the oxidant,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 5 (1980).
R. I. Nigmatulin, P. B. Vainshtein, I. Sh. Akhatov, and V. A. Pykh, “Structure of detonation waves in two-phase disperse media,” in: Chemical Physics of Processes of Combustion and Explosion. Detonation [in Russian], Chernogolovka (1977).
P. B. Vainshtein, R. I. Nigmatulin, and V. V. Popov, “Transition of convective combustion of aerosuspensions of unitary fuel into detonation,“ Fiz. Goreniya Vzryva, No, 5 (1980),
P. B. Vainshtein and R. I. Nigmatulin, “Heterogenous combustion of gas mixtures with particles or drops,” in: Selected Problems of Applied Mechanics [in Russian], Moscow (1974).
A. F. Belyaev, V. K. Bobolev, A. I. Korotkov, A. A. Sulimov, and S. V. Chuiko, Transition of Combustion of Condensed Systems into Explosion [in Russian], Nauka, Moscow (1973).
Kh. A. Rakhmatulin, “Fundamentals of the gas dynamics of interpenetrating motions of compressible media,” Prikl. Mat. Mekh.,20, No. 2 (1956).
R. I. Nigmatulin, Fundamentals of the Mechanics of Heterogenous Media [in Russian], Nauka, Moscow (1978).
A. F. Belyaev, “On the combustion of nitroglycol,“ Zh. Fiz. Khim.,14, No. 8 (1940).
Ya. B. Zel'dovich, O. I. Leipunskii, and V. B. Librovich, Theory of the Nonstationary Combustion of Gunpowder [in Russian], Nauka, Moscow (1975).
P. Lax and B. Wendroff, “Systems of conservation laws,” Commun. Pure Appl. Math., 13, No. 2 (1960).
V. A. Levin and G. G. Chernyi, “Asymptotic Laws of the behavior of detonation waves,” Prikl. Mat. Mekh.,31, No. 3 (1967).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 22–27, January–February, 1981.
Rights and permissions
About this article
Cite this article
Vainshtein, P.B., Nigmatulin, R.I., Popov, V.V. et al. Nonstationary problems of the combustion of aerosuspensions in fuel that contains the oxidant. Fluid Dyn 16, 14–19 (1981). https://doi.org/10.1007/BF01094807
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01094807