针对轴流压缩机叶栅内固体微粒沉积的问题 ,采用计算流体动力学 (CFD)软件对压缩机叶栅内的气固两相流动进行了模拟。文中首先采用简单粘附模型对轴流压缩机叶栅内粒子的沉积进行了计算 ;在此基础上 ,通过引入临界速度和临界角度的概念 ,采用用户定义子程序发展了一种新的粒子沉积模型 ,简称为部分沉积模型。并将采用部分沉积模型和简单沉积模型计算得到的粒子沉积结果进行了对比 ,结果表明部分沉积模型得到的粒子沉积更合理。在此基础上 ,采用部分沉积模型预测了轴流压缩机叶栅总压损失系数随运行时间的变化和 5 0 0小时后叶片壁面的压力系数分布情况 Aiming at the problem of deposition of solid particles inside the compressor cascade, CFD software was used to simulate the gas-solid two-phase flow in the compressor cascade. In this paper, the simple adhesion model is firstly used to calculate the deposition of particles in the axial compressor compressor cascade. Based on this, the concept of critical velocity and critical angle is introduced to develop a new particle deposition Model, referred to as partial deposition model. The particle deposition results obtained by using partial deposition model and simple deposition model are compared. The results show that the particle deposition obtained by partial deposition model is more reasonable. On this basis, the partial deposition model was used to predict the total pressure loss factor of axial compressor blades with the change of operating time and the pressure coefficient distribution of the blade wall after 500 hours