颗粒群研究:多相流多尺度数值模拟的基础

被引:29
作者
毛在砂
机构
[1] 中国科学院过程工程研究所绿色过程与工程重点实验室
关键词
颗粒; 液滴; 气泡; 颗粒群; 相间作用力; 多相流; 数值模拟; 颗粒聚团;
D O I
暂无
中图分类号
TQ022 [物料的输送过程]; TQ018 [数学模型及放大];
学科分类号
摘要
用两流体模型及颗粒轨道模型数值模拟过程工程设备中的多相流,都需要表达浓度较高的分散相和连续相间的作用力的本构方程.本工作综述了多相流中颗粒受力研究的现状和尚待解决的问题.对单个颗粒(包括流体颗粒)在静止和运动流体中的受力情况的研究结果比较丰富,但对颗粒群的研究则很不充分.对颗粒受的曳力研究较多,但还缺乏可信的计算升力、非稳态力等的公式.因此颗粒群的研究成为多相流准确多尺度数值模拟的关键.开发能处理整体和局部均存在非均匀性的多相流的高效算法也是有待克服的困难.
引用
收藏
页码:645 / 659
页数:15
相关论文
共 34 条
[1]  
流态化手册.[M].郭慕孙; 李洪钟; 主编.化学工业出版社.2007,
[2]  
两相与多相流动力学.[M].郭烈锦编著;.西安交通大学出版社.2002,
[3]   Unsteady motion of a single bubble in highly viscous liquid and empirical correlation of drag coefficient [J].
Zhang, Li ;
Yang, Chao ;
Mao, Zai-Sha .
CHEMICAL ENGINEERING SCIENCE, 2008, 63 (08) :2099-2106
[4]  
Numerical simulation of flow behavior of particles and clusters in riser using two granular temperatures.[J].Huilin Lu;Shuyan Wang;Yurong He;Jianmin Ding;Guodong Liu;Zhenhua Hao.Powder Technology.2007, 2
[5]  
Measurement of phase holdups in liquid–liquid–solid three-phase stirred tanks and CFD simulation.[J].Feng Wang;Zai-Sha Mao;Yuefa Wang;Chao Yang.Chemical Engineering Science.2006, 22
[6]   Theoretical prediction of flow regime transition in bubble columns by the population balance model [J].
Wang, TF ;
Wang, JF ;
Jin, Y .
CHEMICAL ENGINEERING SCIENCE, 2005, 60 (22) :6199-6209
[7]  
Gas–liquid flow generated by a Rushton turbine in stirred vessel: CARPT/CT measurements and CFD simulations.[J].A.R. Khopkar;A.R. Rammohan;V.V. Ranade;M.P. Dudukovic.Chemical Engineering Science.2005, 8
[8]  
CFD simulation of concurrent-up gas–solid flow in circulating fluidized beds with structure-dependent drag coefficient.[J].Ning Yang;Wei Wang;Wei Ge;Jinghai Li.Chemical Engineering Journal.2003, 1
[9]  
Numerical simulation of mass transfer of a spherical particle assemblage with the cell model.[J].Zai-Sha Mao;Yuefa Wang.Powder Technology.2003, 1
[10]   Exploring complex systems in chemical engineering - the multi-scale methodology [J].
Li, JH ;
Kwauk, M .
CHEMICAL ENGINEERING SCIENCE, 2003, 58 (3-6) :521-535