Statistic model for predicting cluster movement in circulating fluidized bed (CFB) risers
Statistic model for predicting cluster movement in circulating fluidized bed (CFB) risers
复制标题
预测循环流化床 (CFB) 立管中簇运动的统计模型
DOI：
10.1016/j.jtice.2018.06.027
复制
发表时间：
2018-10
影响因子：
5.7
通讯作者：
Liang Cai
中科院分区：
文献类型：
--
作者：
Zhuang Yaming;Liu Daoyin;Chen Xiaoping;Ma Jiliang;Xiong Jie;Liang Cai
This study aims to develop a statistic model which can predict the cluster movement in a circulating fluidized bed (CFB) riser accurately and fast. The statistic model takes the CFD–DEM results as samples to make the statistical analysis of the particle movement in a two dimensional (2D) CFB riser. The model combines a stochastic cluster developing model (SCDM) with a Markov chain model (MCM) of particles. The Markov process of particles, the image recognition of clusters and the stochastic cluster moving and shaping sub-models are introduced in detail. Four representative cases with different fluidized air velocities are simulated using the CFD–DEM and the SCDM–MCM separately. Results show that the computing speed of the SCDM–MCM is approximately 60 times faster than that of the CFD–DEM, and the SCDM–MCM successfully simulates the development and the noticeable rectangular-shaped structures of clusters, which is consistent with the description of the cluster shaping sub-model. Besides, the SCDM–MCM introduces the instantaneous disturbance of clusters to the movement of particles, which is reflected in the good comparison between the SCDM–MCM and the CFD–DEM simulated particle RTDs and particle mixing curves.
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DOI：
10.1016/j.cep.2008.10.008
发表时间：
2009-03
期刊：
Chemical Engineering and Processing
影响因子：
--
作者：
D. Ponomarev;V. Mizonov;C. Gatumel;H. Berthiaux;E. Barantseva
通讯作者：
D. Ponomarev;V. Mizonov;C. Gatumel;H. Berthiaux;E. Barantseva
DOI：
10.1103/physreve.77.031306
发表时间：
2008-03
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
--
作者：
T. Gottschalk;H. Dehling;A. Hoffmann
通讯作者：
T. Gottschalk;H. Dehling;A. Hoffmann
影响因子：
4.7
作者：
A. Harris;R. B. Thorpe;J. Davidson
通讯作者：
A. Harris;R. B. Thorpe;J. Davidson
影响因子：
5.2
作者：
Minghui Zhang;Minghui Zhang;Kaiwei Chu;F. Wei;A. Yu
通讯作者：
Minghui Zhang;Minghui Zhang;Kaiwei Chu;F. Wei;A. Yu
影响因子：
5.2
作者：
P. Noymer;L. Glicksman
通讯作者：
P. Noymer;L. Glicksman