世界有色金属Issue(5)：1-3,3.
基于CFD-DEM耦合模拟的侧喷吹管道减磨弯头流动特性分析
Study on the flow characteristics of wear-resistant elbow in side injection pipeline by CFD-DEM coupled simulation
胡伟波 1苏利威 2周甲伟 2杨军 1纪云 3吴晓松4
作者信息
- 1. 河南瑞德克气力输送设备有限公司,河南 新乡 453400
- 2. 华北水利水电大学,河南 郑州 450045
- 3. 燕山大学,河北 秦皇岛 066004
- 4. 长沙有色冶金设计研究院有限公司,湖南 长沙 410019
- 折叠
摘要
Abstract
The flow characteristics of gas-solid two-phase flow in elbows are numerical simulated by computational fluid dynamics and discrete element coupling method(CFD-DEM).The aforementioned flow characteristics are important factors to ensure stable and reliable transportation of side injection for coal powder particles in nonferrous metal smelting.The ordinary elbows,the T-shaped elbows,the blind elbows,and spherical elbows are selected to discuss.The results show that there is significant velocity decrease in the three wear-resistant elbows.Meanwhile,significant fluctuations in airflow velocity and pressure are also found in the wear-resistant elbows,which is most significant in the T-shaped elbows.It is also found that the wear-resistant elbow can reduces the wall erosion by particle-particle collisions rather than particle-wall collisions.The number of particle to particle collisions and the contact normal force are relatively high in the three types of wear-resistant elbow,which is a potential factor to flow turbulence in sprayed processing.关键词
侧喷吹/减磨弯头/流动特性/CFD-DEM/气固两相流Key words
Side injection/wear-resistant elbows/flow characteristics/CFD-DEM/gas-solid two phase flow分类
矿业与冶金引用本文复制引用
胡伟波,苏利威,周甲伟,杨军,纪云,吴晓松..基于CFD-DEM耦合模拟的侧喷吹管道减磨弯头流动特性分析[J].世界有色金属,2024,(5):1-3,3.
