A comparative study was conducted on the characteristics of a two-stage axial flow compres-sor,using experimental and numerical methods under fixed and variable inlet guide vane conditions.The two-stage compressor was scaled and modeled from a high-power axial compressor.The absolute flow an-gle and velocity distributions in the spanwise direction at the inlet and the outlet of first rotor blade of the two-stage compressor were measured using a laser Doppler velocimetery(LDV)system.The calculated results are in good agreement with the measured results,verifying the correctness of numerical method.The calculated compressor efficiency is slightly higher than the experimental results.The characteristics of the two-stage compressors have a great similarity,and the flow fields of the two-stage compressor have the same distribution pattern before and after scaling and modeling.After scaling and modeling,the effi-ciency of the two-stage compressor decreases by 1.23％.
关键词
轴流压气机/试验研究/数值模拟/模化缩放/激光多普勒测速
Key words
axial compressor/experimental investigation/numerical simulation/scaling and modeling/Laser Doppler Velocimetery(LDV)
维普
万方数据