CFD Prediction of the Critical Agitation Speed for Complete Dispersion in Liquid-Liquid Stirred Reactors
文献类型：期刊论文
| 作者 | Cheng, Dang; Cheng, Jingcai; Yong, Yumei; Yang, Chao; Mao, Zai-Sha |
| 刊名 | CHEMICAL ENGINEERING & TECHNOLOGY
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 34期号:12页码:2005-2015 |
| 关键词 | Critical impeller speed Dispersion Liquid-liquid Mixing Multiphase flow Simulation |
| ISSN号 | 0930-7516 |
| 通讯作者 | Yang, C |
| 英文摘要 | A computational fluid dynamics (CFD) model is adopted to simulate the turbulent immiscible liquid-liquid flow in a stirred vessel based on a two-fluid model with a k-?-AP turbulence model. An improved inner-outer iterative procedure is adopted to deal with the impeller rotation in a fully baffled stirred tank. Different drag formulations are examined, and the effect of the droplet size on both the dispersed phase holdup distribution and the velocity field is analyzed. Two different numerical criteria are tested for determining the critical impeller speed for complete dispersion. The simulated critical impeller speeds are generally in good agreement with the correlations in the literature when the fixed droplet size is properly selected. This demonstrates that the modeling approach and the numerical criteria proposed in this work are promising for predicting the dispersion characteristics in liquid-liquid stirred tanks. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | MINIMUM IMPELLER SPEEDS ; RUSHTON IMPELLER ; 2-PHASE FLOW ; NUMERICAL-SIMULATION ; BAFFLED VESSELS ; FLUID-DYNAMICS ; SYSTEMS ; TANK ; PHASE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298087900007 |
| 公开日期 | 2013-10-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4323]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Dang,Cheng, Jingcai,Yong, Yumei,et al. CFD Prediction of the Critical Agitation Speed for Complete Dispersion in Liquid-Liquid Stirred Reactors[J]. CHEMICAL ENGINEERING & TECHNOLOGY,2011,34(12):2005-2015. |
| APA | Cheng, Dang,Cheng, Jingcai,Yong, Yumei,Yang, Chao,&Mao, Zai-Sha.(2011).CFD Prediction of the Critical Agitation Speed for Complete Dispersion in Liquid-Liquid Stirred Reactors.CHEMICAL ENGINEERING & TECHNOLOGY,34(12),2005-2015. |
| MLA | Cheng, Dang,et al."CFD Prediction of the Critical Agitation Speed for Complete Dispersion in Liquid-Liquid Stirred Reactors".CHEMICAL ENGINEERING & TECHNOLOGY 34.12(2011):2005-2015. |
入库方式： OAI收割
来源：过程工程研究所
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