Coarse-grain dem modelling in fluidized bed simulation: A review

A Di Renzo, ES Napolitano, FP Di Maio - Processes, 2021 - mdpi.com
In the last decade, a few of the early attempts to bring CFD-DEM of fluidized beds beyond
the limits of small, lab-scale units to larger scale systems have become popular. The …

Computational fluid dynamics of reacting flows at surfaces: Methodologies and applications

D Micale, C Ferroni, R Uglietti… - Chemie Ingenieur …, 2022 - Wiley Online Library
This review presents the numerical algorithms and speed‐up strategies developed to couple
continuum macroscopic simulations and detailed microkinetic models in the context of …

[HTML][HTML] Fast, flexible particle simulations—an introduction to MercuryDPM

T Weinhart, L Orefice, M Post… - Computer physics …, 2020 - Elsevier
We introduce the open-source package MercuryDPM, which we have been develo** over
the last few years. MercuryDPM is a code for discrete particle simulations. It simulates the …

DEM study of mechanical characteristics of multi-spherical and superquadric particles at micro and macro scales

B Soltanbeigi, A Podlozhnyuk, SA Papanicolopulos… - Powder Technology, 2018 - Elsevier
Multi-spheres and Superquadrics are popular approaches for addressing particle shape
effect in the Discrete Element Method (DEM). This study focuses on the mechanical …

DEM analysis of small and small-to-medium strain shear modulus of sands

NSC Reddy, H He, K Senetakis - Computers and Geotechnics, 2022 - Elsevier
Despite the significant progresses in discrete-based numerical studies of granular materials,
most efforts have been placed in the study of large deformation problems and there are …

[HTML][HTML] Concurrent multi-scale modeling of granular materials: Role of coarse-graining in FEM-DEM coupling

H Cheng, AR Thornton, S Luding, AL Hazel… - Computer Methods in …, 2023 - Elsevier
The finite element method (FEM) is commonly used for modeling continuum media, while
particle simulation methods like the so-called discrete element method (DEM) are used for …

Pedestrian collective motion in competitive room evacuation

A Garcimartín, JM Pastor, C Martín-Gómez, D Parisi… - Scientific reports, 2017 - nature.com
When a sizable number of people evacuate a room, if the door is not large enough, an
accumulation of pedestrians in front of the exit may take place. This is the cause of emerging …

Multi-level coarse-grain model of the DEM

D Queteschiner, T Lichtenegger, S Pirker… - Powder Technology, 2018 - Elsevier
The ability to model granular systems at the level of individual particles has largely
conduced to the success of the discrete element method (DEM). At the same time, this …

[HTML][HTML] A micro-macro constitutive relationship for the pressure of solid phase in dense fluid-particle flows in hopper

Y Wu, Q Zheng, H Zhu, A Yu - Powder Technology, 2024 - Elsevier
Continuum modelling of fluid-particle multiphase flows is often challenging when the solid
phase becomes dense. In this work, a micro-macro approach combining the microscale …

DEM study in the critical height of flow mechanism transition in a conical silo

Y Zhang, F Jia, Y Zeng, Y Han, Y **ao - Powder Technology, 2018 - Elsevier
The discharging in silo presents the characteristics of mass flow in the upper part and funnel
flow in the lower part. Obviously, there is a special position where the flow pattern transition …