| 一种气体/液滴混合流动模型与数值计算 |
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| 引用本文： | 薛社生,孙顺凯,李艳.一种气体/液滴混合流动模型与数值计算[J].计算物理,2012,29(3):340-346. |
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| 作者姓名： | 薛社生 孙顺凯 李艳 |
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| 作者单位： | 北京应用物理与计算数学研究所, 北京, 100088 |
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| 基金项目： | 中国工程物理研究院发展基金 |
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| 摘 要： | 研究均匀液滴单态氧发生器(TUDOG)的工作机理,为Cl2/He混合气体横向流过垂直下落的BHP(按重量25%KOH,25%H2O2,及50%H2O)液滴场的化学反应流动建立模型,并对模型方程做数值求解.模型方程中考虑液滴与气体间的质量、动量交换.混合流动的二维模型方程用SIMPLEC方法求解.模拟结果与相关文献提供的实测结果对比较好.结果发现:氯气利用率、单态氧产率随入流气体速度增大而减小,随液滴速度增大而增大;在含液滴区域的上游氯气的吸收利用较显著,对TUDOG的工程设计有参考价值.
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| 关 键 词： | 两相流动 液滴 SIMPLE方法 |
| 收稿时间： | 2011-07-21 |
| 修稿时间： | 2011-12-05 |
Modeling and Numerical Simulation of Gas/drop Flows |
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| XUE Shesheng
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SUN Shunkai
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LI Yan.Modeling and Numerical Simulation of Gas/drop Flows[J].Chinese Journal of Computational Physics,2012,29(3):340-346. |
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| Authors: | XUE Shesheng SUN Shunkai LI Yan |
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| Institution: | Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | To investigate mechanism of TUDOG(transeverse uniform singlet oxygen generator),a chemical reaction model is made to describe physical and chemical performances of Cl2/He mixed gases transversely traveling into a falling BHP(KOH,H2O2,H2O)drop field.Numerical computation is carried out.In two-phase flows,exchange of mass and momentum between two phases is considered.One set of 2-D gas-phase flow equations are solved with SIMPLEC scheme.Simulation results agree well with experiments provided in references.It is found that chlorine utility and singlet oxygen yield decreases with increase of gaseous inflow speed,and increases with speed of falling drops.Absorb and utility of chlorine mainly takes place in reactive region upstream. |
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| Keywords: | two-phase flows liquid drops SIMPLE scheme |
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