|本期目录/Table of Contents|

[1]程 航,喻九阳,汪 威*,等.三相混合器内部流场的数值模拟[J].武汉工程大学学报,2020,42(02):231-236.[doi:10.19843/j.cnki.CN42-1779/TQ.201910034]
 CHENG Hang,YU Jiuyang*,WANG Wei,et al.Numerical Simulation of Internal Flow Field in Three-Phase Mixer[J].Journal of Wuhan Institute of Technology,2020,42(02):231-236.[doi:10.19843/j.cnki.CN42-1779/TQ.201910034]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年02期
页码:
231-236
栏目:
机电与信息工程
出版日期:
2021-01-26

文章信息/Info

Title:
Numerical Simulation of Internal Flow Field in Three-Phase Mixer
文章编号:
1674 - 2869(2020)02 - 0231 - 06
作者:
程 航喻九阳汪 威*孟观林王家全
武汉工程大学 湖北省绿色化工装备工程技术研究中心,湖北 武汉 430205
Author(s):
CHENG HangYU Jiuyang*WANG WeiMENG Guanlin WANG Jiaquan
Hubei Green Chemical Equipment Engineering Research Center, Wuhan Institute of Technology,Wuhan 430205,China
关键词:
三相混合器流场数值模拟微气泡气浮
Keywords:
three-phase mixer flow fieldnumerical simulation microbubble air flotation
分类号:
TQ027.1
DOI:
10.19843/j.cnki.CN42-1779/TQ.201910034
文献标志码:
A
摘要:
采用欧拉模型与群体平衡模型相结合的方法对三相混合器流场进行数值模拟,对比了未充气与充气条件下混合器速度场分布规律,分析了充气条件下流场中气泡分布特征。模拟结果表明:充气后对流场的强化提高了微气泡与粒子之间的碰撞聚并粘附效率。充气后流场中微气泡粒径大量分布于100~200 μm之间,并且出口气携率达到19.77%。较于传统的气浮技术,微气泡与粒子间碰撞几率更大、气泡直径小数量大、分布范围窄、粘附效果更好,因此气浮性能更佳。
Abstract:
The numerical simulation of the three-phase mixer flow field was carried out by combining the Euler model with the group balance model. Additionally, a comparison analysis of the velocity field distribution in the flow field under aerated?and non-aerated?conditions was conducted. Moreover, characteristics of bubble distribution in flow field under aerated conditions were analyzed. The simulation results show that the enhancement of the flow field after inflation improves the efficiency of collision, coalescence and adhesion between microbubbles and particles. In case of aeration, the particle sizes of most of microbubbles in the flow field are between 100 and 200 μm, and the outlet gas entrainment rate reaches 19.77%. Compared with the traditional air floating technique, the collision probability between microbubbles and particles is higher, the diameter of bubbles is smaller, the distribution range is narrower, and the adhesion effect is better. Therefore, the air flotation performance is better.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-10-29基金项目:武汉工程大学科学技术发展院研发项目(19QD11)作者简介:程 航,硕士研究生。E-mail:[email protected]*通讯作者:汪 威,博士,讲师。E-mail:[email protected]引文格式:程航,喻九阳,汪威,等. 三相混合器内部流场的数值模拟[J]. 武汉工程大学学报,2020,42(2):231-236.
更新日期/Last Update: 2020-06-20