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Retrospect and Perspective of Micro-mixing Studies in Stirred Tanks
  • ISSN号:1004-9541
  • 期刊名称:Chinese Journal of Chemical Engineering
  • 时间:2012.2
  • 页码:178-190
  • 分类:O175.29[理学—数学;理学—基础数学] TQ052[化学工程]
  • 作者机构:[1]Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences,Beijing 100190, China
  • 相关基金: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).
  • 相关项目:反应结晶两相微观混合的数学模型和模拟
中文摘要:

混合问题很可能被遇到并且能有时在可伸缩起来工程严重。微混合是为快或伪即时的反应的一个重要方面。差的微混合的力量生产更不希望得到的副产品,导致更高的纯化费用。这份报纸在单身者给微混合的研究的广泛的评论和分析 -- 并且多相的搅动的坦克。相关实验技术,微混合的模型和数字途径极其与备注和观点被考察并且分析。二阶段的微混合的实验上并且在骚乱上的驱散的阶段的存在的影响上的报导研究被限制了到条件的一个狭窄的范围。更重要地,不同广泛地在不同报告之中存在。Lagrangian 和 Eulerian 模型基于过分简化的假设,它可以导致无常或甚至不现实的结果。一个启发式的模型,从 CFD (计算液体动力学) 的观点并且能盖住规模的整个系列并且也集中于每子进程,以后被需要。

英文摘要:

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 multi phase stirred tanks. The relevant experiment techniques, micro-mixing models and nurherical 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 turbulence 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 uncertainties 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 subrocess, is desired in the future.

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期刊信息
  • 《中国化学工程学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国化学工业与化学工程学会
  • 主编:
  • 地址:北京东城区青年湖路13号
  • 邮编:100011
  • 邮箱:cjche@cip.com.cn
  • 电话:010-64519487/88
  • 国际标准刊号:ISSN:1004-9541
  • 国内统一刊号:ISSN:11-3270/TQ
  • 邮发代号:
  • 获奖情况:
  • 1998年化工系统优秀信息成果一等奖,中国期刊方阵“双效”期刊
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  • 被引量:385