| 单个气泡在加压液-固流化床中上升速度的模型与计算 |
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| 引用本文： | 张健,岳敏.单个气泡在加压液-固流化床中上升速度的模型与计算[J].应用基础与工程科学学报,2000,8(1):78-83. |
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| 作者姓名： | 张健 岳敏 |
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| 作者单位： | 清华大学工程力学系,北京,100084 |
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| 摘 要： | 以考虑浮力、液相粘性阻力和颗粒相碰撞力的气泡受力平衡关系式为基础，发展并建立了加压液一固流化床中单个球形气泡上升速度的理论模型．针对不同的床内压力和颗粒相体积分数，计算了单个气泡在加压液一固流化床中的上升速度，并与实验测量数据进行了比较。
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| 关 键 词： | 上升 气泡 受力平衡 速度 颗粒 关系式 液相 流化床 加压 内压力 |
| 修稿时间： | 1999年9月27日 |
A Model and Calculations for the Rise Velocity of a Single Bubble in Pressurized Liquid-solid Fluidized Beds |
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| ZHANG Jian,YUE Min.A Model and Calculations for the Rise Velocity of a Single Bubble in Pressurized Liquid-solid Fluidized Beds[J].Journal of Basic Science and Engineering,2000,8(1):78-83. |
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| Authors: | ZHANG Jian YUE Min |
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| Abstract: | On the basis of the balance equiation for the buoyancy, the liquid viscous force and the particle impaction force acting on a single spherical bubble, a model for the bubble rise velocity in pressurized liquid solid fluidized beds is developed and formulated. The model is employed to calculated the rise velocity of a single bubble in liquid solid fluidized beds under different pressures and solid holdups. The calculated results are compared with the experimental data. |
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| Keywords: | bubble rise velocity pressurized lquid-solid fluidized bed particle-bubble interaction |
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