This article is cited in 14 papers

Stabilized gas combustion wave in an inert porous medium

Yu. M. Laevsky^a, V. S. Babkin<sup>b

a</sup> Institute of Computational Mathematics and Mathematical Geophysics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
^b Institute of Chemical Kinetics and Combustion, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: A stabilized gas combustion wave in an inert porous medium with intense internal interphase heat exchange (at low velocities) is considered to elucidate the mechanism underlying the increase in the burning velocity of the homogeneous gas mixture due to the porous medium. It is shown that the major factor of the increase in the burning velocity is conductive heat recuperation from the postflame zone to the region of the fresh mixture through the solid skeleton of the porous medium. Analytical dependences of the degree of increase in the burning velocity of the mixture in the stabilized wave on the determining parameters are obtained. The possibilities and restrictions of the use of the results to analyze the operation of porous burners are discussed.

Keywords: gas combustion, porous medium, heat recuperation.

UDC: 536.46

Received: 07.12.2007

 English version: Combustion, Explosion and Shock Waves, 2008, 44:5, 502–508

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