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为了分析周向非均匀处理槽对压气机的影响,对一台单级跨声速轴流压气机进行了周向局部处理机匣与全周处理机匣的非定常数值研究.结果显示,具有相同处理槽数的周向局部处理机匣比全周处理机匣能获得更好的压气机性能.由于处理槽的周向非均匀性,前者给叶尖流场产生大尺度的周向非均匀特征,因而能提供后者所不具备的低频非定常作用.此外,提供了高、低频两种非定常作用的周向局部处理机匣能够同时改善叶尖泄漏涡与尾缘分离涡.
In order to analyze the influence of circumferentially non-uniform treatment tank on the compressor, the unsteady numerical study of the casing of a single-stage transonic axial compressor and the casing of a full-circumferential treatment is carried out. The results show that, The number of circumferential partial processing cassettes achieves better compressor performance over the full circumferential processing cassettes, providing the latter with large-scale circumferential non-uniform characteristics of the tip flow field due to the circumferential inhomogeneities of the processing troughs And the unsteady low-frequency unsteady effect.In addition, the casing provided with high-frequency and low-frequency non-stationary peripheral partial processing can improve the tip leakage vortex and the trailing edge separation vortex at the same time.