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This article is cited in 2 scientific papers (total in 2 papers)
Filtration gas combustion in an inhomogeneous porous medium
N. A. Kakutkinaa, A. D. Rychkovb a Institute of Chemical Kinetics and Combustion, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Institute of Computational Technologies, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract:
Mathematical modeling is performed of the transition of a filtration gas combustion wave through the interface between two porous media with different thermodynamic characteristics. Trends and mechanisms of changes in the structure of the filtration gas combustion wave and its propagation velocity in transition through the interface are considered. It is established that the transition process can end not only with the formation of a steady-state combustion wave that corresponds to conditions in the new porous medium but also with the stabilization of the combustion wave at the interface or quenching. It is shown that, in some cases, transition of a filtration gas combustion wave through the interface is accompanied by a sudden transfer of the flame zone for a few millimeters or even centimeters. Because of the thermal inertia of the porous medium, in the experiment this can look like disintegration of the combustion zone into two coexisting regions.
Keywords:
filtration combustion, gas combustion, unsteady combustion.
Received: 08.04.2009 Accepted: 27.01.2010
Citation:
N. A. Kakutkina, A. D. Rychkov, “Filtration gas combustion in an inhomogeneous porous medium”, Fizika Goreniya i Vzryva, 46:4 (2010), 13–24; Combustion, Explosion and Shock Waves, 46:4 (2010), 380–390
Linking options:
https://www.mathnet.ru/eng/fgv1205 https://www.mathnet.ru/eng/fgv/v46/i4/p13
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