| Citation: | Performance of ultracompact interturbine burner with different inlet mass flow splits[J]. Journal of Aerospace Power, 2017, 32(1): 60-65. doi: 10.13224/j.cnki.jasp.2017.01.009
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An optimization analysis of inlet mass flow splits of ultracompact interturbine burner was introduced. The combustion performance in a smallscale interturbine burner was numerically analyzed using Chemkin software, and a detail kerosene RP3/air mechanism was used. Numerical results were qualitatively validated with the existing experimental data with respect to the combustion performance. Five split ratios of the core mass flow rate to cavity mass flow rate, 60/40, 65/35, 70/30, 75/25 and 80/20, were adopted to contrastively study the outlet temperature, combustion efficiency and pollutant emission using the simplified model. The results show that the combustion efficiency of the split ratio 65/35 decreasesd by 0249% compared with the highest efficiency among the five split ratios, but the NOx and CO emissions both decrease more than 50%. The conclusion based on this method can provide a basis for evaluating an optimum mass flow split at the design stage of ultracompact interturbine burner as well as for simplified performance analysis.
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