Abstract
Results of numerical modeling of the propagation of the combustion front of a methane–air mixture in an enclosed spherical volume with an ignition source at the center have been presented. A mathematical model consists of the mass, momentum, and total-energy equations of the gas with account of the heat conduction and chemical reaction, and also of the mass equations of components of the gas mixture with account of their diffusion and burning. The velocity of advance of the combustion front, the pressure change in the volume with time, and the time of burning of the mixture as functions of the content of methane have been determined. The nonuniformity of the distribution of the gas temperature in the volume space after the burning of the mixture has been shown.
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