| Citation: | WANG Jing, ZHANG Man, ZHANG Chi, et al. Combustion organization and NOx emission in a single sector model combustor[J]. Journal of Aerospace Power, 2023, 38（1）：94-103 doi: 10.13224/j.cnki.jasp.20220525
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Combustion organization and NOx formation characteristics in a single sector model lean premixed pre-vaporized combustor were investigated by optical experiments and 3-dimensional numerical simulations. The flow field, spray field, OH and NO species field in the combustor were simulated by the Reynolds-averaged Navier-Stokes method and then compared with the experimental results. It was found that the prediction errors of the flow field and spray angle were 13.9% and 6.0%, respectively. The predicted OH and NO distribution characteristics were in good agreement with the experimental results. The results showed that the main and pilot flames organized combustion in a weakly coupled way, and most NO was generated in high temperature region located in the pilot stage. The variation (0.15−0.30) of fuel staging ratio did not affect the flow and combustion structure, but it had a certain influence on the NO emission, which decreased with the increase of the fuel staging ratio.
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