抄録
In this study, combustion mechanisms and effects of flame stretch on the burning velocity of two-component fuel mixtures at elevated pressure are investigated by chemical kinetics computations. At each initial pressure P_0, lean and rich mixtures having nearly the same laminar burning velocity are prepared by adding nitrogen to mixtures where the hydrogen additional rate δ and P_0 are varied from 0 to 1 and 0.5 to 4.0atm, respectively. As a result, it is elucidated that Markstein numbers decrease with increasing P_0 especially, in the condition of lean and large δ. However, those of rich flames show a complicated trend in the condition of large δ.
