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本文以小扰动理论为基础,应用非定常、二元可压流的流动模型,详细地推导了任意级轴流压气机的旋转失速起始判别准则。利用所设计的计算机程序,完成了对多级轴流压气机旋转失速起始边界的理论估算。具体分析了超音速进口相对流速但轴向分速为亚音速的孤立叶排,利用分区处理的构想,实现了跨音速轴流压气机失速边界的预估。
In this paper, based on the small perturbation theory, a non-stationary and binary flow model is used to derive the criteria for determining the initial rotational stall of an axial-flow compressor of any stage. By using the designed computer program, the theoretical estimation of the initial boundary of rotational stall of multistage axial compressor is completed. In this paper, the isolated leaf row with supersonic inlet relative velocity and subsonic subsonic velocity is analyzed in detail. By using the concept of zoning processing, the stall prediction of transonic axial flow compressor is realized.