Development and Application of One-dimensional Performance Prediction Program for Multistage Axial Compressor
In order to achieve an accurate prediction of the aerodynamic performance of an axial flow compressor,a one-dimensional aerodynamic performance prediction method for multistage axial flow com-pressor based on the mean streamline method was established,and the corresponding Matlab procedures were programmed.For different types of compressor,the suitable empirical models can be selected by this method.The aerodynamic performances of a four-stage subsonic axial flow compressor and an eight-stage high-speed axial flow compressor were calculated.The comparative analysis indicated the one-di-mensional performance prediction results were in good agreement with the experimental and three-dimen-sional CFD simulation results,the calculation deviations of efficiency and pressure ratio were kept within a small range,and the prediction results were with high accuracy.In order to further improve the predic-tion accuracy of compressor aerodynamic performance,an automatic calibration method for empirical model was developed.The selected empirical models of a four-stage subsonic axial flow compressor and an eight-stage high-speed axial flow compressor were calibrated by this method.And the prediction accu-racies of aerodynamic performance under different speeds were improved after calibration.The research results show that the one-dimensional aerodynamic performance prediction method and the automatic mod-el calibration method for multistage axial compressor are accurate and reliable.
axial flow compressorone-dimensional performance predictionempirical model calibra-tionMatlab procedures
万方数据
维普
