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 …

The clustering instability in rapid granular and gas-solid flows

WD Fullmer, CM Hrenya - Annual Review of Fluid Mechanics, 2017 - annualreviews.org
Flows of solid particles are known to exhibit a clustering instability—dynamic microstructures
characterized by a dense region of highly concentrated particles surrounded by a dilute …

Pairwise interaction extended point-particle model for a random array of monodisperse spheres

G Akiki, TL Jackson, S Balachandar - Journal of Fluid Mechanics, 2017 - cambridge.org
This study introduces a new point-particle force model that attempts to account for the
hydrodynamic influence of the neighbouring particles in an Eulerian–Lagrangian simulation …

Discrete simulation of granular and particle-fluid flows: from fundamental study to engineering application

W Ge, L Wang, J Xu, F Chen, G Zhou, L Lu… - Reviews in Chemical …, 2017 - degruyter.com
Multiphase chemical reactors with characteristic multiscale structures are intrinsically
discrete at the elemental scale. However, due to the lack of multiscale models and the …

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 …

Stochastic model for the hydrodynamic force in Euler–Lagrange simulations of particle-laden flows

AM Lattanzi, V Tavanashad, S Subramaniam… - Physical Review …, 2022 - APS
Standard Eulerian–Lagrangian (EL) methods generally employ drag force models that only
represent the mean hydrodynamic force acting upon a particle-laden suspension …

A direct comparison of particle-resolved and point-particle methods in decaying turbulence

M Mehrabadi, JAK Horwitz, S Subramaniam… - Journal of Fluid …, 2018 - cambridge.org
We use particle-resolved direct numerical simulation (PR-DNS) as a model-free physics-
based numerical approach to validate particle acceleration modelling in gas-solid …

Physics-informed neural network for modeling force and torque fluctuations in a random array of bidisperse spheres

Z Cheng, A Wachs - International Journal of Multiphase Flow, 2023 - Elsevier
We present a physics-informed neural network (PINN) model to predict the hydrodynamic
force and torque fluctuations in a random array of stationary bidisperse spheres. The PINN …

A stochastic formulation for the drag force based on multiscale numerical simulation of fluidized beds

A Esteghamatian, F Euzenat, A Hammouti… - International Journal of …, 2018 - Elsevier
Abstract In Esteghamatian, A., Bernard, M., Lance, M., Hammouti, A. and Wachs, A., 2017,
Micro/meso simulation of a fluidized bed in a homogeneous bubbling regime, International …

Particle-resolved simulation of freely evolving particle suspensions: Flow physics and modeling

V Tavanashad, A Passalacqua… - International Journal of …, 2021 - Elsevier
The objective of this study is to understand the dynamics of freely evolving particle
suspensions over a wide range of particle-to-fluid density ratios. The dynamics of particle …