Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed

doi:10.1016/j.cjche.2023.06.002

中国化学工程学报 ›› 2023, Vol. 64 ›› Issue (12): 64-75.DOI: 10.1016/j.cjche.2023.06.002

• Full Length Article • 上一篇下一篇

Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed

Ruiyu Li^1,2, Xiaole Huang¹, Yuhao Wu¹, Lingxiao Dong¹, Srdjan Belošević³, Aleksandar Milićević³, Ivan Tomanović³, Lei Deng¹, Defu Che¹

1. State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2. Shunde Institute of Inspection, Guangdong Institute of Special Equipment Inspection and Research, Foshan 528300, China;
3. Department of Thermal Engineering and Energy, "VINČA" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Vinča, PO Box 522, 11001 Belgrade, Serbia

收稿日期:2022-12-12 修回日期:2023-06-13 出版日期:2023-12-28 发布日期:2024-02-05
通讯作者: Lei Deng,E-mail:leideng@mail.xjtu.edu.cn
基金资助:
This work has been financially supported by the China-CEEC Joint Higher Education Project (Cultivation Project) (CEEC2021001). Srdjan Belošević, Aleksandar Milićević and Ivan Tomanović acknowledge the financial support by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Contract Annex: 451-03-47/2023-01/200017).

Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed

Ruiyu Li^1,2, Xiaole Huang¹, Yuhao Wu¹, Lingxiao Dong¹, Srdjan Belošević³, Aleksandar Milićević³, Ivan Tomanović³, Lei Deng¹, Defu Che¹

1. State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2. Shunde Institute of Inspection, Guangdong Institute of Special Equipment Inspection and Research, Foshan 528300, China;
3. Department of Thermal Engineering and Energy, "VINČA" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Vinča, PO Box 522, 11001 Belgrade, Serbia

Received:2022-12-12 Revised:2023-06-13 Online:2023-12-28 Published:2024-02-05
Contact: Lei Deng,E-mail:leideng@mail.xjtu.edu.cn
Supported by:
This work has been financially supported by the China-CEEC Joint Higher Education Project (Cultivation Project) (CEEC2021001). Srdjan Belošević, Aleksandar Milićević and Ivan Tomanović acknowledge the financial support by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Contract Annex: 451-03-47/2023-01/200017).

摘要/Abstract

摘要： In this study, the open-source software MFIX-DEM simulations of a bubbling fluidized bed (BFB) are applied to assess nine drag models according to experimental and direct numerical simulation (DNS) results. The influence of superficial gas velocity on gas–solid flow is also examined. The results show that according to the distribution of time-averaged particle axial velocity in y direction, except for Wen–Yu and Tenneti–Garg–Subramaniam (TGS), other drag models are consistent with the experimental and DNS results. For the TGS drag model, the layer-by-layer movement of particles is observed, which indicates the particle velocity is not correctly predicted. The time domain and frequency domain analysis results of pressure drop of each drag model are similar. It is recommended to use the drag model derived from DNS or fine grid computational fluid dynamics–discrete element method (CFD-DEM) data first for CFD-DEM simulations. For the investigated BFB, the superficial gas velocity less than 0.9 m·s^-1 should be adopted to obtain normal hydrodynamics.

关键词: MFIX-DEM, Simulation, Dense flow, Gas–solid, Bubbling fluidized bed, Drag model

Abstract: In this study, the open-source software MFIX-DEM simulations of a bubbling fluidized bed (BFB) are applied to assess nine drag models according to experimental and direct numerical simulation (DNS) results. The influence of superficial gas velocity on gas–solid flow is also examined. The results show that according to the distribution of time-averaged particle axial velocity in y direction, except for Wen–Yu and Tenneti–Garg–Subramaniam (TGS), other drag models are consistent with the experimental and DNS results. For the TGS drag model, the layer-by-layer movement of particles is observed, which indicates the particle velocity is not correctly predicted. The time domain and frequency domain analysis results of pressure drop of each drag model are similar. It is recommended to use the drag model derived from DNS or fine grid computational fluid dynamics–discrete element method (CFD-DEM) data first for CFD-DEM simulations. For the investigated BFB, the superficial gas velocity less than 0.9 m·s^-1 should be adopted to obtain normal hydrodynamics.

Key words: MFIX-DEM, Simulation, Dense flow, Gas–solid, Bubbling fluidized bed, Drag model

Ruiyu Li, Xiaole Huang, Yuhao Wu, Lingxiao Dong, Srdjan Belošević, Aleksandar Milićević, Ivan Tomanović, Lei Deng, Defu Che. Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed[J]. 中国化学工程学报, 2023, 64(12): 64-75.

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Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed

Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed

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