| Citation: | LIU Yunpeng, ZHANG Juxing, LI Wei, et al. Numerical simulation on generation law of non-uniform inflow under high temperature and strong cosine rotation condition[J]. Journal of Aerospace Power, 2023, 38（8）：1965-1974 doi: 10.13224/j.cnki.jasp.20220138
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For the non-uniform inlet conditions of high temperature and strong cosine rotation of the new generation integrated afterburner, the generation law of inlet flow was investigated. The non-uniform flow field characteristics of self-designed non-uniform generator under different inlet Mach numbers, cosine rotation angles and total temperature conditions were studied. The accuracy of the numerical simulation was verified by the experimental measurement results from the five-hole probe, and the numerical simulation method was used to quantify the nonuniformity index of the flow field. Results showed that the Mach number non-uniformity index decreased with the increase of blade torsion angle; the cosine rotation angle non-uniformity index decreased with the increase of axial distance and inlet Mach number; the temperature non-uniformity index increased with the increase of Mach number and mainstream inlet temperature. In addition, the fitting formula developed could well predict the variation of key parameters. At the same time, the simulation results can provide technical support for the design and optimization of non-uniformity flow generator.
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