Effect of flow history on combustion in a laminar boundary layer

Results of numerical simulations of methane combustion in a laminar boundary layer on a porous plate with an impermeable initial section are presented. The analysis of results is based on comparisons of data with and without combustion, and also for different initial section lengths including the zero length. The flow history is demonstrated to exert a significant effect on heat transfer and friction in the boundary layer with injection without combustion, whereas the influence of the flow history in the case with combustion is smaller. The phenomenon experiencing the least effect of the flow history is heat transfer.