| 大型筛板塔上两相湍流的数值模拟 |
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| 引用本文： | 郭英锋,刘辉,陈标华,李成岳.大型筛板塔上两相湍流的数值模拟[J].北京化工大学学报(自然科学版),2004,31(1):1-5. |
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| 作者姓名： | 郭英锋 刘辉 陈标华 李成岳 |
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| 作者单位： | 北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京,100029 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 运用CFD数值模拟方法，建立了大型筛板塔塔板上气液两相流双流体模型，数值求解了三维速度场分布。文中应用κ-ε模型封闭雷诺方程，构成了二方程湍流模型，附加关系采用了修正GRACE相间曳力模型，CFD模拟结果与实验值进行了对比，真实地反映了塔板上三维混乱的流体力学特性，并揭示了液相的回流现象。
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| 关 键 词： | CFD 筛板塔 双流体模型 速度场 湍流模型 CFD 筛板塔 双流体模型 速度场 湍流模型 |
| 收稿时间： | 2003-04-28 |
| 修稿时间： | 2003年4月28日 |
Numerical computation for turbulent flow of two phase on a sieve tray |
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| Guo Ying-feng;Liu Hui;Chen Biao-hua;Li Cheng-yue;.Numerical computation for turbulent flow of two phase on a sieve tray[J].Journal of Beijing University of Chemical Technology,2004,31(1):1-5. |
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| Authors: | Guo Ying-feng;Liu Hui;Chen Biao-hua;Li Cheng-yue; |
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| Affiliation: | The Key Laboratory of Science and Technology of Controllable Chemical Reactions, Ministry of Education; Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | A computational fluid dynamics (CFD) model was developed for describing the hydrodynamics of large scale sieve trays. A two-fluid model to simulate the three-dimensional velocity field of the gas-liquid two-phase flow on a sieve tray was presented. In the calculation, the κ-ε model was adopted to close the Reynolds equations, and construct a trubulent model. In this model, a modified grace model is used to calculate the force between gas-liquid phases. The CFD simulation results agree with the experimental measurements, reflect the chaotic tray hydrodynamics and reveal several liqiud circulation patterns, which show a true three-dimensional character. |
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| Keywords: | CFD（computational fluid dynamics) sieve trays tower two-fluid model three-dimensional velocity field turbulent model |
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