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

Ruiyu Li; Xiaole Huang; Yuhao Wu; Lingxiao Dong; Srdjan Belošević; Aleksandar Milićević; Ivan Tomanović; Lei Deng; Defu Che

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

Full Length Article | Updated：2026-01-06

- 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
- 中国化学工程学报（英文版） 2023年64卷第12期页码：64-75
- Affiliations：
  
  1. State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University,Xi'an,China,710049
  2. Shunde Institute of Inspection, Guangdong Institute of Special Equipment Inspection and Research,Foshan,China,528300
  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, Belgrade11001, Serbia
- Author bio：
- Funds：
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  中图分类号：
- 纸质出版：2023
- Accepted：
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Ruiyu Li, Xiaole Huang, Yuhao Wu, 等. Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed[J]. 中国化学工程学报（英文版）, 2023,64(12):64-75.

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]. Chinese Journal of Chemical Engineering, 2023, 64(12): 64-75.
Ruiyu Li, Xiaole Huang, Yuhao Wu, 等. Comparative analysis on gas–solid drag models in MFIX-DEM simulations of bubbling fluidized bed[J]. 中国化学工程学报（英文版）, 2023,64(12):64-75. DOI：

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]. Chinese Journal of Chemical Engineering, 2023, 64(12): 64-75. DOI：

摘要

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

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.

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