Abstract:
Two groups of unsteady-state effects have been studied. The first group includes the effects that are connected with initial and boundary conditions, i.e., combustion-wave formation and extnction near the walls of a vessel. The size of a combustion zone in a steady-state wave is the spatial scale of these processes. These effects are based on temperature nonequilibrium. between the gas and the porous medium. The second group includes the effects that are caused by both the dynamic change in the parameters of the reacting-gas state upon combustion and the corresponding loss of steady-flame stability which is manifested either in transitions of one combustion regime to another or in flame extinction.
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