| Rushton搅拌釜内的气含率分布及其流动特性的模拟 |
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| 引用本文： | 李伟,刘跃进,孔丽娜,韩路长. Rushton搅拌釜内的气含率分布及其流动特性的模拟[J]. 化工学报, 2011, 62(10): 2691-2968. DOI: 10.3969/j.issn.0438-1157.2011.10.003 |
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| 作者姓名： | 李伟 刘跃进 孔丽娜 韩路长 |
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| 作者单位： | 湘潭大学化工学院,湖南湘潭,411105 |
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| 基金项目： | 国家自然科学基金项目(20776121); 湖南省高校环境友好催化与绿色化工工艺科技创新团队支持计划; 湖南省高校绿色催化与反应工程重点实验室开发基金项目~~ |
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| 摘 要： | 利用雷诺应力模型结合多参考系法模拟了Rushton气液搅拌釜内的气液流动特性,得到了不同截面处气含率大小分布规律,并与γ射线CT实验所测得的结果做了比较,发现除排出流区CFD模拟值与实验值相差较大外,上循环区与下循环区都吻合得较好；结果表明排出流区的气含率最高,在搅拌桨高速旋转下,流体沿叶片端面急速排出,湍动也十分强烈...
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| 关 键 词： | 雷诺应力模型 气液流动 气含率分布 速度分布 |
Simulation for gas hold-up distribution and flow behavior in Rushton stirred tank |
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| LI Wei,LIU Yuejin,KONG Lina,HAN Luchang. Simulation for gas hold-up distribution and flow behavior in Rushton stirred tank[J]. Journal of Chemical Industry and Engineering(China), 2011, 62(10): 2691-2968. DOI: 10.3969/j.issn.0438-1157.2011.10.003 |
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| Authors: | LI Wei LIU Yuejin KONG Lina HAN Luchang |
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| Affiliation: | LI Wei,LIU Yuejin,KONG Lina,HAN Luchang(School of Chemical Engineering,Xiangtan University,Xiangtan 411105,Hunan,China) |
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| Abstract: | Reynolds stress model was combined with the multiple reference frame(MRF)approach to simulate gas-liquid flow characteristics in a stirred vessel agitated by a Rushton turbine,and an array of gas hold-up distribution in different cross sectional places was obtained.The numerical simulation results were compared with the experimental data measured by a developed gamma ray computed tomography(CT)system.The CFD simulation results are in reasonable agreement with the experimental data except the discharge flow ... |
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| Keywords: | Reynolds stress model gas-liquid flow gas holdup distribution velocity distribution |
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