| 循环流化床内颗粒团运动的研究模型 |
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| 引用本文： | 由长福,徐旭常.循环流化床内颗粒团运动的研究模型[J].清华大学学报(自然科学版),1998(5). |
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| 作者姓名： | 由长福 徐旭常 |
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| 作者单位： | 清华大学热能工程系 |
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| 基金项目： | 国家科技攀登计划A项目 |
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| 摘 要： | 颗粒团运动是循环流化床中气固两相流动的重要特征之一。本文描述了一种循环流化床内颗粒团运动的研究模型，给出了该模型中颗粒团的基本概念及其相关的物理模型与数学模型，对单颗粒及颗粒团的碰撞、破碎、粘附等过程对颗粒团运动的影响进行了初步的理论研究及数值假定，提出了基于轨道模型上的用于研究颗粒团运动的数值计算方法及计算过程，为全面研究颗粒团现象奠定了基础。
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| 关 键 词： | 颗粒团 颗粒碰撞 数值模拟 |
Study modelling of cluster in circulating fluidized bed |
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| YOU Changfu,XU Xuchang.Study modelling of cluster in circulating fluidized bed[J].Journal of Tsinghua University(Science and Technology),1998(5). |
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| Authors: | YOU Changfu XU Xuchang |
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| Institution: | YOU Changfu,XU Xuchang Department of Thermal Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | The cluster is one of the important characteristics in the circulating fluidized bed (CFB). This paper describes a study modelling of the cluster in CFB, gives the basic concepts of the cluster and the correlative physical and numerical models. The initial theorematic research and numerical assumption about influence of the collision, fracture and conglutination of the particles and clusters on the clusters' movement have been carried on. The numerical method and calculation process used to study the clusters' movement are presented. This paper lays a foundation for overall solving the cluster phenomena. |
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