| 鼓泡塔中离子液体-空气两相流的CFD-PBM耦合模拟 |
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| 引用本文： | 徐琰,董海峰,田肖,张香平,张锁江. 鼓泡塔中离子液体-空气两相流的CFD-PBM耦合模拟[J]. 化工学报, 2011, 62(10): 2699-2706. DOI: 10.3969/j.issn.0438-1157.2011.10.004 |
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| 作者姓名： | 徐琰 董海峰 田肖 张香平 张锁江 |
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| 作者单位： | 1. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190;中国科学院研究生院,北京100049
2. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京,100190 |
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| 基金项目： | 国家自然科学基金重点项目(21036007)~~ |
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| 摘 要： | 针对咪唑类离子液体介质，采用Euler-Euler双流体模型与群平衡模型（PBM）耦合的方法，引入由实验结果拟合获得的适用于该介质的气液相间曳力系数模型，对内径0.203 m、高2 m的鼓泡塔中离子液体-空气两相流进行计算流体力学模拟，研究了不同表观气速下塔内气液两相速度场分布、气含率和气泡尺寸分布等流体动力学性质。与现有的相间曳力系数模型Schiller-Naumann模型模拟结果对比，采用本文模型得到的气含率与实验值吻合更好，气泡尺寸分布与实验结果一致。
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| 关 键 词： | 离子液体 鼓泡塔 计算流体力学 Euler-Euler模型 群平衡模型 |
CFD-PBM coupled simulation of ionic liquid-air two-phase flow in bubble column |
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| XU Yan,DONG Haifeng,TIAN Xiao,ZHANG Xiangping,ZHANG Suojiang. CFD-PBM coupled simulation of ionic liquid-air two-phase flow in bubble column[J]. Journal of Chemical Industry and Engineering(China), 2011, 62(10): 2699-2706. DOI: 10.3969/j.issn.0438-1157.2011.10.004 |
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| Authors: | XU Yan DONG Haifeng TIAN Xiao ZHANG Xiangping ZHANG Suojiang |
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| Affiliation: | XU Yan1,2,DONG Haifeng1,TIAN Xiao1,ZHANG Xiangping1,ZHANG Suojiang1(1State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China,2Graduate School of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Ionic liquids have been regarded as a new and effective solvent and absorbent,however,the fluid dynamics of ionic liquids have not been thoroughly investigated.Computational fluid dynamics(CFD)is an increasingly important method to understand the fluid dynamics of multiphase fluid.In this work,the gas holdup,bubble size distribution and flow velocities of ionic liquid-air two-phase flow in bubble column were investigated by using Euler-Euler method and population balance model(PBM)coupled numerical model.Co... |
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| Keywords: | ionic liquid bubble column computational fluid dynamics Euler-Euler model population balance model |
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