Stabilized gas combustion wave in an inert porous medium |
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Authors: | Yu M Laevskii V S Babkin |
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Affiliation: | (1) Institute of Computational Mathematics and Mathematical Geophysics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia;(2) Institute of Chemical Kinetics and Combustion, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia |
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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.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 5, pp. 8–15, September–October, 2008. |
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Keywords: | gas combustion porous medium heat recuperation |
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