| 筛孔塔板浓度场的测量与模拟 |
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| 引用本文： | 孙志民,刘春江,袁希钢,余国琮.筛孔塔板浓度场的测量与模拟[J].化工学报,2006,57(8):1877-1883. |
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| 作者姓名： | 孙志民 刘春江 袁希钢 余国琮 |
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| 作者单位： | 化学工程联合国家重点实验室(天津大学),天津大学化工学院,天津,300072;化学工程联合国家重点实验室(天津大学),天津大学化工学院,天津,300072;化学工程联合国家重点实验室(天津大学),天津大学化工学院,天津,300072;化学工程联合国家重点实验室(天津大学),天津大学化工学院,天津,300072 |
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| 摘 要： | 通过测量被纯氧饱和的水在塔板上发生氧解吸时液相氧浓度，得到了伴有传质的浓度场，并发现在速度返流区会出现浓度旋涡.使用计算传质学的方法对塔板浓度场进行了数值模拟，计算值与实验值符合得较好.通过模拟，同时得到了湍流传质扩散系数的分布.
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| 关 键 词： | 浓度场 计算传质学(CMT) 测量 筛板塔 湍流传质扩散系数 |
| 文章编号： | 0438-1157（2006）08-1877-07 |
| 收稿时间： | 05 23 2006 12:00AM |
| 修稿时间： | 2006-05-232006-06-08 |
Measurement and numerical simulation of concentration distribution on sieve tray |
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| SUN Zhimin,LIU Chunjiang,YUAN Xigang,YU Guocong.Measurement and numerical simulation of concentration distribution on sieve tray[J].Journal of Chemical Industry and Engineering(China),2006,57(8):1877-1883. |
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| Authors: | SUN Zhimin LIU Chunjiang YUAN Xigang YU Guocong |
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| Affiliation: | Yu, K.T.;State Key Laboratory for Chemical Engineering ( Tianjin University |
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| Abstract: | The concentration profiles of dissolved oxygen were experimentally measured when the water saturated with pure oxygen flowed through a sieve tray.The measured results showed that a concentration eddy existed in the sector where circulating flow took place.With a computational mass transfer (CMT) model, the distribution of concentration was simulated and compared with the experimental data.The simulated results were in reasonable agreement with the measurement.The turbulent mass transfer diffusivity profile was also obtained by the simulation. |
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| Keywords: | concentration field computational mass transfer (CMT) measurement sieve tray turbulent mass transfer diffusivity |
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