| 气—固密相流化床流型转变的机理模型 |
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| 引用本文： | 蔡平,金涌.气—固密相流化床流型转变的机理模型[J].化学反应工程与工艺,1992,8(3):297-301. |
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| 作者姓名： | 蔡平 金涌 |
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| 作者单位： | 清华大学化工系，清华大学化工系，清华大学化工系，美国Ohio State University 100084，100084，100084 |
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| 摘 要： | 以机理实验为依据,提出了一个描述气-固流化床中从鼓泡流态化向湍动流态化流型转变的物理模型。导出了当单位床层体积中气泡数目对气速的二阶导数为零时发生流型转变,该模型的计算机结果与实验数据吻合良好。
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| 关 键 词： | 流型 流化床反应器 |
THE MECHANISMIC MODEL OF THE FLOW REGIME TRANSITION FROM BUBBLING TO TURBULENT FLUIDIZATION |
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| Cai Ping Jin Yong Yu ZhiQing Liang-Shih Fan.THE MECHANISMIC MODEL OF THE FLOW REGIME TRANSITION FROM BUBBLING TO TURBULENT FLUIDIZATION[J].Chemical Reaction Engineering and Technology,1992,8(3):297-301. |
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| Authors: | Cai Ping Jin Yong Yu ZhiQing Liang-Shih Fan |
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| Affiliation: | Cai Ping Jin Yong Yu ZhiQing Liang-Shih Fan Department of Chemical Engineering,Tsinghua University,Beijing 100084,China The Ohio State University,Columbus OH43210,USA |
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| Abstract: | A physical model of the flow regime transition from bubbling to turbulent fluidization was proposed on the basis of mechanismic experiments.When the second derivative of the bubble number in unit bed volume with respect to gas velocity equals zero,the flow regime transition occurs.The model fits fairly well with the experimental data. |
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| Keywords: | Fluidization Flow regime Mechanismic model |
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