The Effect of Different Reaction Mechanisms on Combustion Simulation of a Reverse-Flow Combustor

Three different reaction mechanisms of kerosene and flamelet models were used to simulate combustion in a reverse-flow combustor. By comparing the effects of different mechanisms on the flow field characteristics, components and temperature distribution of the combustion chamber, the results showed that: Under different reaction mechanisms, there was a strong similarity between flow filed and temperature field, but the penetration depth and temperature distribution of local jets were affected by the mechanism. Due to the different reaction paths and reaction rates, the distribution of major components had a great degree of similarity, but the concentration of intermediate components varied greatly. Comprehensive analysis, the 16 species and 17 species reaction mechanisms can simulate the flow field and outlet temperature distribution of the combustor well.