| 搅拌槽内微观混合研究的回顾与展望(英文) |
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| 引用本文： | 程景才,冯鑫,程荡,杨超. 搅拌槽内微观混合研究的回顾与展望(英文)[J]. 中国化学工程学报, 2012, 20(1): 178-190. DOI: 10.1016/S1004-9541(12)60378-4 |
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| 作者姓名： | 程景才 冯鑫 程荡 杨超 |
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| 作者单位： | Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
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| 基金项目： | Supported by the State Key Development Program for Basic Research of China (2010CB630904);the National Natural Science Fund for Distinguished Young Scholars (21025627);the National Natural Science Foundation of China (21106154,20990224);the National High Technology Research and Development Program of China (2011AA060704);the Beijing Natural Science Foundation (2112038) and Jiangsu Province Project (BY2009133) |
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| 摘 要： | Mixing problems are most likely encountered and sometimes can be severe in scaling-up projects.Micro-mixing is an important aspect for fast or quasi-instantaneous reactions.Poor micro-mixing might produce more undesired by-products,leading to higher purification costs.This paper gives an extensive review and analysis of micro-mixing studies in single-and multiphase stirred tanks.The relevant experiment techniques,micro-mixing models and numerical approaches are critically reviewed and analyzed with remarks and perspectives.The reported studies on two-phase micro-mixing experiments and on the impact of the presence of the dispersed phases on turbu-lence have been limited to a narrow range of conditions.More importantly,disparities widely exist among different reports.Both Lagrangian and Eulerian models are based on oversimplified assumptions,which may lead to uncer-tainties or even unrealistic results.A heuristic model,which is from the perspective of CFD(computational fluid dynamics) and can cover the whole spectrum of scales and also focus on every sub-process,is desired in the future.
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| 关 键 词： | micro-mixing multiphase micro-mixing model stirred tank computational fluid dynamics |
| 收稿时间： | 2011-10-10 |
Retrospect and Perspective of Micro-mixing Studies in Stirred Tanks |
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| CHENG Jingcai,FENG Xin,CHENG Dang and YANG Chao. Retrospect and Perspective of Micro-mixing Studies in Stirred Tanks[J]. Chinese Journal of Chemical Engineering, 2012, 20(1): 178-190. DOI: 10.1016/S1004-9541(12)60378-4 |
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| Authors: | CHENG Jingcai FENG Xin CHENG Dang YANG Chao |
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| Affiliation: | Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Mixing problems are most likely encountered and sometimes can be severe in scaling-up projects.Micro-mixing is an important aspect for fast or quasi-instantaneous reactions.Poor micro-mixing might produce more undesired by-products,leading to higher purification costs.This paper gives an extensive review and analysis of micro-mixing studies in single-and multiphase stirred tanks.The relevant experiment techniques,micro-mixing models and numerical approaches are critically reviewed and analyzed with remarks and perspectives.The reported studies on two-phase micro-mixing experiments and on the impact of the presence of the dispersed phases on turbu-lence have been limited to a narrow range of conditions.More importantly,disparities widely exist among different reports.Both Lagrangian and Eulerian models are based on oversimplified assumptions,which may lead to uncer-tainties or even unrealistic results.A heuristic model,which is from the perspective of CFD(computational fluid dynamics) and can cover the whole spectrum of scales and also focus on every sub-process,is desired in the future. |
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| Keywords: | micro-mixing multiphase micro-mixing model stirred tank computational fluid dynamics |
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