文献类型：期刊文献

中文题名：旋流流化床数值模拟及颗粒运动分析

英文题名：Numerical Simulation and Motion Analysis of Particles in Cyclone Fluidized Bed

作者：李宗哲[1];王黎望[1];陈迩文[1];杨伟辉[1];马良[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2022

卷号：48

期号：4

起止页码：556

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：Scopus;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：国家自然科学基金(21878099)。

语种：中文

中文关键词：旋流流化床;运动轨迹;Fluent;离散元;受力分析

外文关键词：cyclone fluidized bed;movement track;Fluent;discrete element;stress analysis

摘要：对单旋流和双旋流两种结构的流化床内部流场进行了分析,采用欧拉多相流模型研究了流化床内颗粒的分布状态和速度大小分布等,对比观察两种结构的颗粒簇的轴向爬升特性以及死区分布,结果表明双旋流结构流化床内颗粒的流化程度更好,颗粒分布更加均匀稳定。并采用Fluent耦合离散元分析软件EDEM分析了两种结构的颗粒运动特性,发现颗粒轴向运动呈现加速与减速交替,双旋流结构流化床的流化性能更优,可以使颗粒更快达到稳定状态。
The inner flow field in cyclone fluidized bed with single swirler and double swirler structure was analyzed. The Eulerian multiphase flow model was used to analyze the distribution state and velocity distribution of the particles, and the axial climbing characteristics and dead zone distribution of the particle clusters with two structures were compared and observed. The results showed that the fluidization degree of the double swirler structure was better, and the particle distribution was more uniform and stable. The Fluent coupled discrete element analysis software EDEM was used to analyze the particle motion characteristics of two structures. It was found that the axial motion of the particles alternated between acceleration and deceleration. The fluidized bed with double swirler structure had better fluidization performance and could make particles reach stable state faster.