| Citation: | FENG Shuang, LI Baokuan, YANG Xiaoxi, et al. Response surface characteristic analysis of jet precooling on aero-engine inlet temperature[J]. Journal of Aerospace Power, 2024, 39（7）：20220131 doi: 10.13224/j.cnki.jasp.20220131
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To investigate the influence of MIPCC technology on the temperature field in the pre-compressor section, a three-dimensional mathematical model was proposed to study the droplet atomization and evaporation process using the Eulerian-Lagrangian method. The mass transfer and momentum exchange between gas-liquid phase were realized by two-way coupling method. Compared with existing experimental results, the accuracy of the temperature in the mathematical model was verified. The effects of W-A ratio, velocity, particle size, and cone angle on the temperature of inlet air were analyzed by response surface methodology in the aero-engine, and a four-factor and three-level response surface methodology was established. The results showed that the temperature drop ratio of engine intake air temperature was 3.67%−26.02%. The visualized nonlinear multivariable design optimization equation based on multiple regression method and the effects of W-A ratio, velocity, particle size and cone angle on inlet cooling effect were obtained. When the W-A ratio was 0.08, the particle size was 10.47 μm, the velocity was 39.52 m/s and the cone angle was 24.79°, the minimum inlet temperature of aero-engine was 449.60 K.
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