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本文介绍了扩压叶栅中端部流动的实验研究结果。给出了叶栅出口截面端壁附近的二次流速度、主流速度、全压及气流转折角的测量结果。作者认为,在压气机静叶栅中采用内围带时,必须考虑到围带对叶栅气动特性的影响。
This paper presents the experimental results of the end-flow in a diffuser cascade. The measurement results of the secondary flow velocity, the main flow velocity, the total pressure and the air flow transition angle near the end wall of the exit section of the cascade are given. The authors believe that the use of the inner shroud in the compressor stator cascade must take into account the influence of the shroud on the aerodynamic characteristics of the cascade.