| 气液鼓泡床内的液体流速分布 |
| |
| 引用本文： | 罗潇,刘平乐,罗和安.气液鼓泡床内的液体流速分布[J].化工学报,2006,57(7):1565-1569. |
| |
| 作者姓名： | 罗潇 刘平乐 罗和安 |
| |
| 作者单位： | 湘潭大学化工学院,湖南,湘潭,411105;湘潭大学化工学院,湖南,湘潭,411105;湘潭大学化工学院,湖南,湘潭,411105 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 引言 鼓泡床是一种重要的气液或气液固多相反应器.液体循环流动是鼓泡床的一个重要流体力学特征,从20世纪50年代人们就开始对此进行了比较系统的实验研究1-6].这个特征对鼓泡床的流体返混行为、气含率、气液界面积以及传热传质系数都有很大影响,特别是液体返混行为可以由液体循环特性直接决定.如何准确地描述和预测鼓泡床中的液体流速沿径向的分布,关系到鼓泡床反应器的设计、放大和优化.因此,许多年来它一直是人们致力探讨的重要课题之一7-8].
|
| 关 键 词： | 鼓泡床 湍流黏度分布 液体循环 |
| 文章编号： | 0438-1157（2006）07-1565-05 |
| 收稿时间： | 02 8 2006 12:00AM |
| 修稿时间： | 2006-02-082006-03-27 |
Modeling of liquid circulation in gas-liquid bubble columns |
| |
| LUO Xiao,LIU Pingle,LUO He'an.Modeling of liquid circulation in gas-liquid bubble columns[J].Journal of Chemical Industry and Engineering(China),2006,57(7):1565-1569. |
| |
| Authors: | LUO Xiao LIU Pingle LUO He'an |
| |
| Affiliation: | Department of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China |
| |
| Abstract: | This paper proposes a modified model of eddy viscosity distribution for liquid flow in bubble columns based on a relationship from single-phase flow and then develops a liquid circulation model for bubble columns. The comparison between the liquid circulation model and the reported experimental data shows that the liquid circulation model based on the modified model of eddy viscosity distribution not only agrees with the data very well but also has a wide application range. In addition, the determination of the model parameters is discussed according to the simulation for the reported data with this model. |
| |
| Keywords: | bubble column eddy viscosity distribution liquid circulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
|
