Continuum theory for dense gas-solid flow: A state-of-the-art review

J Wang - Chemical Engineering Science, 2020 - Elsevier
Gas-solid fluidization technology has been commercialized in many industrial applications
since its implementation in the fluid catalytic cracking process in the early 1940s, however …

Recent advances and perspectives of CFD–DEM simulation in fluidized bed

Z Zhao, L Zhou, L Bai, B Wang, R Agarwal - Archives of Computational …, 2024 - Springer
The coupling of computational fluid dynamics (CFD) and discrete element method (DEM)
has become an important method for studying dense fluidized beds. Since DEM can track …

Influence of void fraction calculation on fidelity of CFD‐DEM simulation of gas‐solid bubbling fluidized beds

Z Peng, E Doroodchi, C Luo, B Moghtaderi - AIChE Journal, 2014 - Wiley Online Library
The correct calculation of cell void fraction is pivotal in accurate simulation of two‐phase
flows using a computational fluid dynamics‐discrete element method (CFD‐DEM) approach …

Computational fluid dynamics modeling of gas-solid fluidized bed reactor: Influence of numerical and operating parameters

V Akbari, TNG Borhani, A Shamiri… - Experimental and …, 2024 - Springer
In this paper, the most influential parameters (numerical and operating parameters) affecting
the performance of fluidized bed reactors are studied. The investigated parameters are …

Recent progress and potential challenges in coal upgrading via gravity dry separation technologies

C Zhou, X Liu, Y Zhao, X Yang, Y Li, L Dong, C Duan… - Fuel, 2021 - Elsevier
Coal plays a vital role in the economic development of the world as the primary energy. In
recent years, hazardous elements emission from coal utilization has attracted considerable …

CFD-DEM simulations and experimental validation of clustering phenomena and riser hydrodynamics

AEC Varas, E Peters, JAM Kuipers - Chemical Engineering Science, 2017 - Elsevier
A combined numerical and experimental study of riser hydrodynamics is reported for the fast
fluidisation regime. The experimental data sets are used for validation of the CFD-DEM …

Lattice Boltzmann method for particulate multiphase flow system

Q Li, G Yang, Y Huang, X Lu, J Min, M Wang - International Journal of …, 2024 - Elsevier
This study proposes a numerical model for particulate three-phase flow in microchannels
based on multiphase lattice Boltzmann method (LBM). The model combines the color …

Dense upflow fluidized bed (DUFB) solar receivers of high aspect ratio: Different fluidization modes through inserting bubble rupture promoters

Y Deng, F Sabatier, R Dewil, G Flamant… - Chemical Engineering …, 2021 - Elsevier
A fluidized bed of Geldart-A particles is promoted as heat transfer fluid in the tubular solar
receivers of solar towers. A pressure-driven upward particle flow affects the hydrodynamic …

Micromechanical modeling and analysis of different flow regimes in gas fluidization

QF Hou, ZY Zhou, AB Yu - Chemical Engineering Science, 2012 - Elsevier
The micromechanics of different particle–fluid flow regimes, such as fixed, expanded and
fluidized beds, in gas fluidization is investigated for group A and B powders. To establish the …

Identification of gas-solid flow regimes using convolutional neural network techniques

D Zhang, B Ouyang, ZH Luo - Powder Technology, 2024 - Elsevier
Flow regime identification is crucial for design and optimization of gas-solid fluidized bed
devices. However, how to quickly and accurately identify flow regimes remains a formidable …