关键词: 轴流式压缩机;旋转失速;失速特性;数值仿真

Abstract: A nonlinear,two dimension,compressible dynamic model of instability prediction of axial flow compressors was described.The flow dynamics were presented by unsteady Euler equations and semi empirical correlation.The development of stall cell and the characteristic parameters of rotating stall in a single rotor and a three stage axial flow compressor were simulated by numerical method.Most of the simulation results agree well with the experimental data

Key words: Axial flow compressor;Rotating stall;Stalling characteristic;Numerical simulation