The Influence of Angle Precision of Variable Stator Vane on the Multistage Compressor Performance
In order to obtain the influence of the adjustment accuracy of variable stator vane on the aero-dynamic performance of multistage compressors,three rows of S1,R2 and S2 blades of an 11-stage high-pressure compressor were simulated in full 3D.The quantitative influence of the angle error of var-iable stator vane was analyzed by adjusting S1 stator angle.The results show that the higher the adjust-ment accuracy of variable stator vane is,the more the compressor matches the design condition and the better the aerodynamic performance is.When the angle accuracy of variable stator vane is±1°,it has little effect on compressor efficiency.However,when the angle accuracy of variable stator vane is closed at 3°,the maximum efficiency loss is 0.31%,and the flow separation of the pressure surface of the stator near the hub obviously increases.
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