机匣处理对轴流式压气机性能的影响

The Effect of Casing Treatment on Axial Flow Compressor Performance

本文介绍了均匀流场下实壁机匣和带机匣处理的单级和多级压气机的试验结果,分析了几种机匣处理结构改进失速裕度可能的机理。探讨了带机匣处理的单级和多级压气机失速裕度改进量存在差别的原因,为采用机匣处理扩大稳定工作范围提出了一些有意义的建议。

This paper presents the test results of single-stage and multi-stage compres-sors under an uniform flow field with and without a casing treatment.An analysisis given of the mechanism of stall margin improvement possibilities through theuse of several forms of casing treatment.The reason why there exist some differ-ences in stall margin improvement for single-stage and multistage compressors em-ploying casing treatment is descussed.Some meaningful proposals aimed at enlargingstable operation range through the use of casing treatment are also given.