Journal ArticleDOI
Validation and experimental calibration of 3D discrete element models for the simulation of the discharge flow in silos
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In this paper, the authors developed 3D discrete element models capable of simulating the observed flow of glass beads (simple glass spheres) and maize grains (represented as a combination of spheres) during their discharge from a small model silo.About:
This article is published in Chemical Engineering Science.The article was published on 2011-11-01. It has received 170 citations till now.read more
Citations
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Discrete element models for non-spherical particle systems: From theoretical developments to applications
TL;DR: In this paper, a review of recent developments in the discrete element method (DEM) to model particles of non-spherical shape is presented, including shape representation, algorithms for the efficient detection of contacts and the determination of contact parameters.
Journal ArticleDOI
Review: Calibration of the discrete element method
TL;DR: In this article, a review of the different approaches as found in literature over the last 25 years is critically reviewed and the calibration of specific parameters discussed, with the aim to work towards a more standardised and validated approach.
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Calibration of the discrete element method and the effect of particle shape
TL;DR: In this article, a calibration process is proposed to calibrate the parameter values for crushed rock particles up to 40 mm in size using a large shear box with a diameter of 590 mm.
Journal ArticleDOI
Determination of the mechanical properties of maize grains and olives required for use in DEM simulations
TL;DR: In this paper, the experimental determination of values for several of the microscopic properties of maize grains and olives, required for use in DEM simulations, are described, the apparatuses and experimental protocols employed, the difficulties arising with each described, and the results obtained discussed.
Journal ArticleDOI
Experimental and numerical investigation on the influence of particle shape and shape approximation on hopper discharge using the discrete element method
TL;DR: In this paper, an experimental and numerical investigation with the discrete element method (DEM) on the discharge of spheres and polyhedral dices from a hopper is conducted, which demonstrates the adequacy of DEM as well as polyhedral and smoothed polyhedral approximation schemes to simulate non-spherical particle geometries.
References
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Journal Article
Discrete numerical model for granular assemblies.
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
Journal ArticleDOI
A discrete numerical model for granular assemblies
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
Journal ArticleDOI
Lagrangian numerical simulation of plug flow of cohesionless particles in a horizontal pipe
TL;DR: In this paper, Lagrangian-type numerical simulation was carried out on plug flow of cohesionless, spherical particles conveyed in a horizontal pipe and the motion of individual particles contacting each other was calculated using the equations of motion and a modified Cundall model.