| 用于界面对流模拟的格子Boltzmann方法 |
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| 引用本文： | 付博,袁希钢,陈炜,陈淑勇.用于界面对流模拟的格子Boltzmann方法[J].中国科技论文在线,2008(12):941-946. |
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| 作者姓名： | 付博 袁希钢 陈炜 陈淑勇 |
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| 作者单位： | 天津大学化工学院,化学工程联合国家重点实验室,天津300072 |
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| 基金项目： | 国家自然科学基金重点项目（20736005）; 长江学者和创新团队发展计划资助IRT0641 |
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| 摘 要： | 通过引入外力修正系数和界面对流强度,在介观尺度上运用格子Boltzmann方法模拟乙酸乙酯吸收二氧化碳传质过程的界面Rayleigh对流现象。基于实验测定的流场平均速度值来确定外力修正系数,在外力修正系数确定的条件下,进行了平均速度分析,其结果与实验相符;并且考查了平均浓度和界面对流强度随时间变化关系。
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| 关 键 词： | 化学工程 外力修正系数 格子Boltzmann方法 界面对流强度 |
A Lattice-Boltzmann method for simulation of interfacial convection phenomenon |
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| FU Bo,YUAN Xigang,Chen Wei,Chen Shuyong.A Lattice-Boltzmann method for simulation of interfacial convection phenomenon[J].Sciencepaper Online,2008(12):941-946. |
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| Authors: | FU Bo YUAN Xigang Chen Wei Chen Shuyong |
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| Institution: | (State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | By introducing correlation coefficient of external force and interfacial convection intensity,a lattice Boltzmann method is used for simulation of the interfacial Rayleigh convection phenomena in the mass transfer process of carbon dioxide absorbed in ethyl acetate in meso scale.The value of correlation coefficient of external force is determined based on average velocity of flow field from experimental data.As a result,the simulated results are consistent with the experimental result by average velocity analysis,and its variation with time of average concentration and interfacial convection intensity is studied. |
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| Keywords: | Chemical Engineering correlation coefficient of external force lattice Boltzmann method intensity of interfacial convection |
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