| 固-液搅拌槽内槽底流场的CFD模拟 |
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| 引用本文： | 王振松,李良超,黄雄斌.固-液搅拌槽内槽底流场的CFD模拟[J].北京化工大学学报(自然科学版),2005,32(4):5-9. |
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| 作者姓名： | 王振松 李良超 黄雄斌 |
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| 作者单位： | 北京化工大学化学工程学院,北京,100029;北京化工大学化学工程学院,北京,100029;北京化工大学化学工程学院,北京,100029 |
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| 摘 要： | 使用计算流体力学CFD软件CFX-5.5.1对搅拌槽内固液流场进行了数值模拟。搅拌槽直径T=476mm, 槽内均布四块挡板，搅拌桨为CBYⅢ桨。两相物系采用玻璃珠-水体系，固体体积分数Фv为5.4%。文中使用标准κ-ε模型计算了清水与固液两相的流场，考察了槽内的流场的分布对固体颗粒悬浮状况的影响，同时把槽底的清水和Фv为5.4%的固液两相模拟结果与实验结果进行了对比，模拟结果与实验较吻合。
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| 关 键 词： | 计算流体力学(CFD) 固液体系 κ-ε模型 搅拌槽 |
| 收稿时间： | 2004-10-11 |
| 修稿时间： | 2004年10月11日 |
CFD modeling of liquid velocity in solid- liquid stirred tanks |
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| Wang Zhen-song,LI Liang-chao,HUANG Xiong-bin.CFD modeling of liquid velocity in solid- liquid stirred tanks[J].Journal of Beijing University of Chemical Technology,2005,32(4):5-9. |
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| Authors: | Wang Zhen-song LI Liang-chao HUANG Xiong-bin |
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| Institution: | College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | For the scale-up of solid-liquid stirred tanks, it is important to study the velocity distribution for both liquid and solid in a stirred tank. In this paper the liquid velocity in solid-liquid stirred tanks was predicated using Computational Fluid Dynamics(CFD) and validated by the experimental data obtained from the literature. The predication was carried out in a fully baffled, flat bottom vessel, with 476mm diameter, equipped with CBYIII impeller. The multiphase flow was modeled using the κ-ε model. The CFD predication of the velocity distribution in the bottom of the stirred tank is in good agreement with the experimental data. |
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| Keywords: | computational fluid dynamics (CFD) solid liquid system k-εmodel stirred tank |
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