| 湍动浆态床流体力学研究(Ⅳ)带垂直列管束的浆态床流体力学模型与模拟 |
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| 引用本文： | 张煜,李红波,李兆奇,王丽军,李希.湍动浆态床流体力学研究(Ⅳ)带垂直列管束的浆态床流体力学模型与模拟[J].化工学报,2011,62(12):3373-3380. |
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| 作者姓名： | 张煜 李红波 李兆奇 王丽军 李希 |
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| 作者单位： | 浙江大学化学工程与生物工程学系，浙江 杭州310027 |
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| 基金项目： | 国家高技术研究发展计划项目(2006AA05Z313); 浙江省自然科学基金重点项目(Z4100351); 浙江省科技计划公益性项目(2010C31026)~~ |
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| 摘 要： | 工业浆态床反应器一般都安装有密集的换热列管,列管束的存在使得速度和气含率的径向分布趋于陡峭,形成“烟囱效应”,目前对此还缺乏合适的流体力学模型进行定量描述.本文提出两点新思路以解决列管束的模拟问题:一是将密集列管束的影响作为体积源项而不是边界条件来考虑,在标准k-ε方程中增加与列管阻力相关的动量源、湍动源、耗散源本构关...
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| 关 键 词： | 浆态鼓泡塔 流体力学模型 列管内构件 |
Hydrodynamics of turbulent slurry bubble column ( Ⅳ )Modeling and simulation of bubble column with vertical pipe bundles |
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| ZHANG Yu,LI Hongbo,LI Zhaoqi,WANG Lijun,LI Xi.Hydrodynamics of turbulent slurry bubble column ( Ⅳ )Modeling and simulation of bubble column with vertical pipe bundles[J].Journal of Chemical Industry and Engineering(China),2011,62(12):3373-3380. |
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| Authors: | ZHANG Yu LI Hongbo LI Zhaoqi WANG Lijun LI Xi |
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| Affiliation: | ZHANG Yu,LI Hongbo,LI Zhaoqi,WANG Lijun,LI Xi(Department of Chemical Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China) |
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| Abstract: | The commercial-scale slurry bubble column reactors are generally equipped with bundles of vertical heat-exchange pipes.Experimental results showed that existence of the pipe bundles led to steepening of liquid velocity and gas holdup distributions,the so-called funneling effect.At present,there is still lack of reliable CFD models which quantitatively describe the impact of vertical pipe bundles.In this work,a novel hydrodynamic model was developed,with two new ideas.The influence of pipe bundles was regard... |
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| Keywords: | slurry bubble column hydrodynamic model pipe bundle internals |
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