轴流压缩机叶栅内固体微粒沉积的数值研究  

NUMERICAL STUDY OF THE DEPOSITION OF SOLID PARTICLES IN THE BLADE CASCADEOF AXIAL COMPRESSORS

作　　者：席光[1] 贾会霞[1] 王晓锋[1] 孙金菊[1] 邱凯[1] 

机构地区：[1]西安交通大学能动学院,陕西西安710049

出　　处：《工程热物理学报》2003年第1期55-58,共4页Journal of Engineering Thermophysics

基　　金：教育部骨干教师基金项目资助

摘　　要：本文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。文中首先采用不同的湍流模型和不同的壁面处理方法计算了垂直圆管内固体微粒的沉积,并与实验数据进行了对比。在此基础上,研究了轴流压缩机叶栅内不同直径粒子在叶片压力面和吸力面的沉积规律;且研究了不同工况对粒子沉积的影响。To predict the deposition of solid particles in the blade cascade of axial compressors, the two-phase flow of gas-solid was numerically simulated by CFD software. The deposition velocity of a vertical pipe available from experimental data was simulated firstly using different turbulent models and different near-wall treatment approaches. Then the deposition characteristic of different particle diameters in the blade cascade of the axial compressor was obtained. Meantime, the effect of gas inlet angle on the deposition position was studied.

关 键 词：轴流压缩机 叶栅 固体微粒沉积 湍流 流体动力学 数值模拟 

分 类 号：TH453[机械工程—机械制造及自动化]