流体机械2015，Vol.43Issue(8)：16-20,5.DOI:10.3969/j.issn.1005-0329.2015.08.004
离心压缩机内固粒运动规律与冲蚀磨损的数值模拟
Numerical Simulation of Solid Particle Motion and Erosion Within a Centrifugal Compressor
摘要
Abstract
To study the solid particle erosion of the blades in the centrifugal compressor,based on discrete phase model,Finnie ductile materials erosion model of FLUENT software,the motion trajectory,motion speed and mass concentration of solid particles and the erosion rate of the blades were simulated successfully.According to the simulation results,when the diameter ranges from 5μm to 20μm,most of the solid particles flow through the flow channel near the pressure surface of the large blade.Before arriving at the front edge,the particle speed increases quickly,but during the process of running to the rear edge of the blade,the speed first reduces and then increases.At the rear edge of the large blade where concentration and speed of solid particles are high,the maximum erosion rate appears.And particles with larger diameter cause more serious erosion wear to the pressure surface.关键词
离心式压缩机/固体颗粒/离散相模型/运行轨迹/叶片磨损Key words
centrifugal compressor/solid particle/discrete phase model/motion trajectory/blade erosion分类
机械制造引用本文复制引用
徐文汗,李剑峰,王光存,刘子武,姚帅帅..离心压缩机内固粒运动规律与冲蚀磨损的数值模拟[J].流体机械,2015,43(8):16-20,5.基金项目
国家重点基础研究发展计划(973计划) 资助项目(2011CB013401) （973计划）
