可压流旋转失速起始的研究

RESEARCH OF ONSET OF ROTATING STALL FOR COMPRESSIBLE FLOW

本文建立了双排和单排叶片的非定常、二元、可压流的流动模型,推导了轴流压气机双排和单排叶片的旋转失速起始判别准则。预估值和实验值的吻合,证明了理论分析的可靠性。利用计算结果,讨论了压缩性对旋转失速起始边界的影响。

With the help of unsteady, two-dimensional and Compressible flow model, the inception criterion of rotating stall for double and single blade row in axial compressor has been derived. Good agreement between the theoretical and experimental results indicates that the theoretical analysis is trustworthy. Influence of compressibility on the onset boundary of rotating stall is discussed.