SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2023, Vol. 58 ›› Issue (6): 205-223.DOI: 10.1016/j.cjche.2022.11.001

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Numerical simulation of gas-liquid flow in the bubble column using Wray-Agarwal turbulence model coupled with population balance model

Hongwei Liang1,2, Wenling Li1,2, Zisheng Feng1,2, Jianming Chen2, Guangwen Chu1,2, Yang Xiang1,2   

  1. 1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2022-06-09 Revised:2022-10-31 Online:2023-08-31 Published:2023-06-28
  • Contact: Yang Xiang,E-mail:xiangy@mail.buct.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (22078009) and National Key Research and Development Program of China (2021YFC3001102, 2021YFC3001100).

Numerical simulation of gas-liquid flow in the bubble column using Wray-Agarwal turbulence model coupled with population balance model

Hongwei Liang1,2, Wenling Li1,2, Zisheng Feng1,2, Jianming Chen2, Guangwen Chu1,2, Yang Xiang1,2   

  1. 1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
  • 通讯作者: Yang Xiang,E-mail:xiangy@mail.buct.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (22078009) and National Key Research and Development Program of China (2021YFC3001102, 2021YFC3001100).

Abstract: In this paper, an improved computational fluid dynamic (CFD) model for gas-liquid flow in bubble column was developed using the one-equation Wary-Agarwal (WA) turbulence model coupled with the population balance model (PBM). Through 18 orthogonal test cases, the optimal combination of interfacial force models, including drag force, lift force, turbulent dispersion force. The modified wall lubrication force model was proposed to improve the predictive ability for hydrodynamic behavior near the wall of the bubble column. The values simulated by optimized CFD model were in agreement with experimental data, and the errors were within ±20%. In addition, the axial velocity, turbulent kinetic energy, bubble size distribution, and the dynamic characteristic of bubble plume were analyzed at different superficial gas velocities. This research work could provide a theoretical basis for the extension of the CFD-PBM coupled model to other multiphase reactors..

Key words: CFD-PBM, Wray-Agarwal turbulence model, Gas-liquid flow, Bubble column, Interfacial force, Wall lubrication force

摘要: In this paper, an improved computational fluid dynamic (CFD) model for gas-liquid flow in bubble column was developed using the one-equation Wary-Agarwal (WA) turbulence model coupled with the population balance model (PBM). Through 18 orthogonal test cases, the optimal combination of interfacial force models, including drag force, lift force, turbulent dispersion force. The modified wall lubrication force model was proposed to improve the predictive ability for hydrodynamic behavior near the wall of the bubble column. The values simulated by optimized CFD model were in agreement with experimental data, and the errors were within ±20%. In addition, the axial velocity, turbulent kinetic energy, bubble size distribution, and the dynamic characteristic of bubble plume were analyzed at different superficial gas velocities. This research work could provide a theoretical basis for the extension of the CFD-PBM coupled model to other multiphase reactors..

关键词: CFD-PBM, Wray-Agarwal turbulence model, Gas-liquid flow, Bubble column, Interfacial force, Wall lubrication force