Bubble size modeling approach for the simulation of bubble columns

被引：7
作者：
Zhang, Xibao [1 ]
Luo, Zhenghong [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Dept Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2023年 / 53卷
基金：
中国国家自然科学基金;
关键词：
Bubble column; Bubble size modeling; Numerical simulation; Population balance equations; Computational efficiency; GAS HOLDUP DISTRIBUTIONS; NUMERICAL-SIMULATION; CFD SIMULATION; COALESCENCE; FLOWS; BREAKUP; REACTOR; FORCES;
D O I：
10.1016/j.cjche.2022.02.005
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The constant bubble size modeling approach (CBSM) and variable bubble size modeling approach (VBSM) are frequently employed in Eulerian-Eulerian simulation of bubble columns. However, the accuracy of CBSM is limited while the computational efficiency of VBSM needs to be improved. This work aims to develop method for bubble size modeling which has high computational efficiency and accuracy in the simulation of bubble columns. The distribution of bubble sizes is represented by a series of discrete points, and the percentage of bubbles with various sizes at gas inlet is determined by the results of computational fluid dynamics (CFD)-population balance model (PBM) simulations, whereas the influence of bubble coalescence and breakup is neglected. The simulated results of a 0.15 m diameter bubble column suggest that the developed method has high computational speed and can achieve similar accuracy as CFD-PBM modeling. Furthermore, the convergence issues caused by solving population balance equations are addressed.(c) 2022 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
引用
收藏
页码：194 / 200
页数：7
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