Quasiisobaric approximation in combustion theory

Based on the laminar combustion of gases and the filtration combustion of porous condensed compounds, some general approaches to the study of their mathematical models are demonstrated that simplify their quantitative analysis. Processes in a wide circle of phenomena proceed under conditions of a weakly disturbed pressure field, though providing macroscopic convective transfer. Under conditions of the substantially changed temperature field, in contrast to condensed media, gaseous media change their specific volume and increase mobility, which should be considered in combustion processes. The suggested quasi-stationary consideration of reacting medium flows simplifies their computation and analysis.