Combustion, Explosion, and Shock Waves

, Volume 46, Issue 4, pp 380–390 | Cite as

Filtration Gas Combustion in an Inhomogeneous Porous Medium

  • N. A. Kakutkina
  • A. D. Rychkov
Full Articles


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.

Key words filtration combustion gas combustion unsteady combustion 


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Copyright information

© MAIK/Nauka 2010

Authors and Affiliations

  1. 1.Institute of Chemical Kinetics and Combustion, Siberian DivisionRussian Academy of SciencesNovosibirskRussia
  2. 2.Institute of Computational Technologies, Siberian DivisionRussian Academy of SciencesNovosibirskRussia

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