General formulation of drag force on assemblage of spherical particles in fluids: A critical review and a new empirical formula

Y Liu, X Yu - Physics of Fluids, 2022 - pubs.aip.org
Establishment of a simple but accurate formula for the drag force acting on an assemblage
of particles moving relative to its carrier fluid is critical to modeling the flow of a particle–fluid …

The accurate prediction and analysis of bed expansion characteristics in liquid–solid fluidized bed based on machine learning methods

J Peng, W Sun, G Zhou, L **e, H Han, Y **ao - Chemical Engineering …, 2022 - Elsevier
Liquid–solid fluidizations are mainly affected by particle density, particle size, particle shape,
superficial velocity, liquid viscosity, etc. Owing to these complex high-dimensional impact …

[HTML][HTML] New hydraulic insights into rapid sand filter bed backwashing using the Carman–Kozeny model

OJI Kramer, PJ de Moel, JT Padding, ET Baars… - Water research, 2021 - Elsevier
Fluid flow through a bed of solid particles is an important process that occurs in full-scale
water treatment operations. The Carman–Kozeny model remains highly popular for …

[HTML][HTML] Effects of porous media type and nozzle design on the backwashing regime of pressurised porous media filters

J Graciano-Uribe, T Pujol, M Duran-Ros, G Arbat… - Biosystems …, 2024 - Elsevier
Pressurised sand filters used in drip irrigation need periodic backwashing to flush the
contaminant particles out of the porous media. This process consumes high amounts of …

[HTML][HTML] Bed expansion at backwashing in pressurised porous media filters for drip irrigation: Numerical simulations and analytical equations

J Graciano-Uribe, T Pujol, D Hincapie-Zuluaga… - Biosystems …, 2022 - Elsevier
Highlights•The backwashing mode of a pressurised granular media filter was
investigated.•The CFD model reproduced the fluidised bed behavior for superficial …

Drag correlations for flow past monodisperse arrays of spheres and porous spheres based on symbolic regression: Effects of permeability

L Ma, Q Guo, X Li, S Xu, J Zhou, M Ye, Z Liu - Chemical Engineering …, 2022 - Elsevier
An accurate drag correlation accounting for multiscale heterogeneous porous structures is a
prerequisite for reliable CFD simulation of fluidized beds. Though particle clusters in …

Particle dynamics in vertical vibration-driven immersed granular systems: A study with resolved computational fluid dynamics-discrete element method

C Wang, L Wei, Y An - Physics of Fluids, 2023 - pubs.aip.org
Vibration-driven immersed granular systems (VIGSs) are ubiquitous in nature and industry.
However, particle dynamics in 3D VIGSs is hard to obtain directly from experiments. The …

Symbolic Regression-Dimensionless Learning Data-Driven Coupled Modeling of the Interpretable Bed Expansion Ratio in a Liquid–Solid Fluidized Bed

J He, X Du, L **e, ZH Luo - Industrial & Engineering Chemistry …, 2024 - ACS Publications
In the chemical industry, liquid–solid fluidized beds are commonly encountered because of
their diverse real-world applications, including but not limited to heterogeneous catalysis …

[HTML][HTML] Accurate voidage prediction in fluidisation systems for full-scale drinking water pellet softening reactors using data driven models

OJI Kramer, PJ de Moel, JT Padding, ET Baars… - Journal of Water …, 2020 - Elsevier
In full-scale drinking water production plants in the Netherlands, central softening is widely
used for reasons related to public health, client comfort, and economic and environmental …

A universal drag model for liquid-solid fluidization: Experiment, data-driven modeling, CFD modeling and simulation

G Zhou, L **e - Powder Technology, 2024 - Elsevier
Various industrial applications are performed in liquid-solid fluidized beds where drag force
plays a significant role in affecting the expansion characteristics of granular-bed, and then …