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 …

Simulation of particle mixing and separation in multi-component fluidized bed using Eulerian-Eulerian method: A review

Y Zhang, Z Ran, B Jin, Y Zhang, C Zhou… - International Journal of …, 2019 - degruyter.com
In practical engineering applications, the mixing and separation behavior of multi-
component particles is importance to the fluidized bed operation. The development of many …

Development and validation of an enhanced filtered drag model for simulating gas-solid fluidization of Geldart A particles in all flow regimes

X Gao, T Li, A Sarkar, L Lu, WA Rogers - Chemical Engineering Science, 2018 - Elsevier
Coarse-grid two-fluid simulation of gas-solid fluidized bed reactors based on the kinetic
theory of granular flow exhibits a significant dependence on drag models, especially for …

Comparative CFD modeling of a bubbling bed using a Eulerian–Eulerian two-fluid model (TFM) and a Eulerian-Lagrangian dense discrete phase model (DDPM)

M Adnan, J Sun, N Ahmad, JJ Wei - Powder Technology, 2021 - Elsevier
Abstract Eulerian–Eulerian and Eulerian-Lagrangian numerical approaches are both widely
used to investigate hydrodynamic behavior in dense gas-solid fluidized bed reactors, yet …

A grid-independent EMMS/bubbling drag model for bubbling and turbulent fluidization

H Luo, B Lu, J Zhang, H Wu, W Wang - Chemical Engineering Journal, 2017 - Elsevier
The EMMS/bubbling drag model takes the effects of meso-scale structures (ie bubbles) into
modeling of drag coefficient and thus improves coarse-grid simulation of bubbling and …

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 …

Coupling Artificial Neural Network with EMMS drag for simulation of dense fluidized beds

Z Yang, B Lu, W Wang - Chemical Engineering Science, 2021 - Elsevier
The previous sub-grid, energy-minimization multi-scale (EMMS) drag models were all
established at certain fixed operating conditions and material properties. In this study, we …

Validation and sensitivity analysis of an Eulerian-Eulerian two-fluid model (TFM) for 3D simulations of a tapered fluidized bed

M Adnan, J Sun, N Ahmad, JJ Wei - Powder Technology, 2022 - Elsevier
In the present work, the hydrodynamics behavior of a 3D small-scale cold flow modeling of a
gas-solid tapered fluidized bed is evaluated with the Eulerian-Eulerian two-fluid modeling …

Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors

B Lu, J Zhang, H Luo, W Wang, H Li, M Ye… - Chemical Engineering …, 2017 - Elsevier
Scale-up of fluidized bed reactors has long been regarded as a big challenge in chemical
reaction engineering. While traditional scaling theories are mostly based on hydrodynamics …

Effect of heterogeneity on interphase heat transfer for gas–solid flow: A particle-resolved direct numerical simulation

J Fu, S Chen, X Zhou - Physics of Fluids, 2022 - pubs.aip.org
Particle-resolved direct numerical simulation (PR-DNS) of flow past a particle cluster is
conducted to analyze the influence of heterogeneous particle distribution on the gas–solid …