| S弯内稀相气固两相流动数值研究 |
| |
| 引用本文： | 陈卫民,袁国安,肖双双.S弯内稀相气固两相流动数值研究[J].华南农业大学学报(社会科学版),2014,32(2). |
| |
| 作者姓名： | 陈卫民 袁国安 肖双双 |
| |
| 作者单位： | 1．南华大学城市建设学院，湖南衡阳421001：2．衡阳三力高科技开发公司，湖南衡阳421001；3．南华大学船山学院，湖南衡阳 421001 |
| |
| 基金项目： | 湖南省高校产业化培育项目(12CY01I) |
| |
| 摘 要： | 通过使用Fluent软件的Realizable K-ε湍流模型，对S弯内稀相气固两相流动特性进行三维数值模拟，并采用定
性分析的方法分析了固体颗粒对管道侵蚀的规律。结果表明：在S弯上游管段，管道内侧压力小速度大，管道外侧压力
大速度小；而在速度和压力的分布在S弯下游管段则与之相反。根据体积分数与冲蚀大小的关系，可以确定φ=0。截面
的外侧和φ= 90。截面的内侧颗粒对管道的侵蚀最严重。
|
| 关 键 词： | 气固两相流 S弯 数值模拟 双流体模型 磨损 |
Stimulation Research of Gas-Solid Two-Phase Flow in an S-bend |
| |
| HEN Weiminl,YUAN Guoanl,XIAO Shuangshuang.Stimulation Research of Gas-Solid Two-Phase Flow in an S-bend[J].Journal of South China Agricultural University:Social Science Edition,2014,32(2). |
| |
| Authors: | HEN Weiminl YUAN Guoanl XIAO Shuangshuang |
| |
| Institution: | l. School of Urban Construction . University of South China , Hengyang , Hunan 421001 , China ;2. Hengyang Sunny High-Tech R&D Company , Hengyang , Hunan 421001 , China ;3 . Wang Chuanshan College , University of South China , Hengyang , Hunan 421001 , China |
| |
| Abstract: | The Realizable K-E models were used to simulate flow behavior of dilute-phase gas-solid two-phase flow in a
3D S-bend numerically and the influence of erosion in this section was evaluated qualitatively. The results show that the
pressure inside of pipe is higher than the outside of pipe while the speed of two phases inside of pipe is lower than
outside of pipe in the upstream piping. The distribution rule of pressure and flow velocity in downstream piping is against
to the upstream piping. It can conclude that the greatest erosion emerges in the section of cp =00 and cp =900. |
| |
| Keywords: | gas-solid two-phase flow S-bend numerical stimulation two-fluid model erosion |
|
| 点击此处可从《华南农业大学学报(社会科学版)》浏览原始摘要信息 |
| 点击此处可从《华南农业大学学报(社会科学版)》下载免费的PDF全文 |
