Abstract:
A laminar flame propagating in a rich homogeneous hydrogen-air mixture with addition of propylene is numerically simulated. Small amounts of propylene are shown to reduce the concentrations of HO$_2$ and OH in the low-temperature zone of the flame front, which effectively reduces the laminar burning velocity. In the flame front, propylene is consumed completely with formation of CÎ, ÑÎ$_2$, ÑÍ$_4$, Ñ$_2$Í$_2$, Í$_2$, and Í$_2$Î, whereas hydrogen undergoes little oxidation compared to propylene.
Keywords:inhibition, hydrogen flame, diffusion of radicals, quadratic branching.
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