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对带处理机匣的压气机转子Rotor 37在总压畸变进口条件下的流场进行了三维数值模拟.分别计算了光壁、斜缝处理机匣和带背腔斜缝处理机匣在有畸变和无畸变进气时的转子特性参数,分析了均匀进气时斜缝处理机匣的扩稳机理,并比较分析了两种处理机匣在畸变进气时对压气机的稳定性影响.结果表明:在均匀进气时两种处理机匣都具有较好的扩稳作用,但在畸变进气时带背腔斜缝机匣的扩稳作用比均匀进气时的扩稳作用减弱,而无背腔斜缝机匣会使压气机的稳定裕度下降.
The three-dimensional numerical simulation of the flow field of compressor rotor Rotor 37 with the casing was carried out under the condition of total pressure distortion inlet.The effects of the distortion of the light wall, And the characteristics of the rotor without distortion were analyzed. The stability of the cascades was analyzed when the uniform intake air was inflated. The stability of the compressor when the two casings were distorted was analyzed. Results The results show that both treatment casings have a better effect of stabilizing when the gas is uniformly injected, but the expansion stability of the cascade cascade with back cavity is weaker than that of the uniform gas when the air intake is distorted No backsliding slit casing will make the compressor stability margin decreased.