进气条件对多级高压压气机的稳定性影响

打开文本图片集

中图分类号：TH138.9 文献标志码：A 文章编号：1671-5276(2025)03-0013-06

Effect of Intake Condition on Stability of Multi-stage High Pressure Compressor

XUHaotian，HUJun,HUANGChen

(College ofEnergyandPower Enginering，Nanjing UniversityofAeronauticsandAstronautics,Nanjing 21Ool6,China)

Abstract:Basedonthemain ideaof thedynamicmodel，athree-dimensionalcalculation program isdesignedtonumerially simulatetheperformanceandstabilityofamodernmultistagehigh-speedcompressrunderthreediferentairintakeconditions involvinggroundstandardatmosphericconditions，highaltitudelowReynolds numberstateandsteadystatecircumferentialtotal pressure distortion.Thecharacteristics of pressureratioandisentropic eficiencyunder diferentintakeconditionsarestudied, andthegroundconditionsareingoodagreementwiththeexperimentalresults.Thebasiclosscoeficientof Reynolds number in the toroidal force programismodified，andthecalculatedlowReynoldsnumbercharacteristicswellconsistwiththeexperimental results.The steady-state circumferential total pressre distortion will cause compressor performance degradation.

Keywords：multi-stage high pressrecompressor;lowReynoldsnumber；steadystatecircumferential totalpressredistortion; body force

0 引言

压气机的稳定性[是指从气体动力学角度出发，在其被干扰情况下保持稳态工作状态的能力。（剩余9293字）