Journal ArticleDOI
Parametrization and validation of a nonsmooth discrete element method for simulating flows of iron ore green pellets
TLDR
The nonsmooth discrete element method (NDEM) has the potential of high computational efficiency for rapid exploration of large design space of systems for processing and transportation of mineral o....About:
This article is published in Powder Technology.The article was published on 2015-10-01. It has received 31 citations till now. The article focuses on the topics: Discrete element method.read more
Citations
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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.
Journal ArticleDOI
The angle of repose and size segregation of iron ore granules: DEM analysis and experimental investigation
TL;DR: In this article, the authors developed a DEM model to study the packing characteristics of iron ore granules and found that the angle of repose of granules was greatly influenced by granule size, sliding and rolling friction coefficients.
Journal ArticleDOI
Modeling and simulation of green iron ore pellet classification in a single deck roller screen using the discrete element method
Benito Barbabela e Silva,Emerson Reikdal da Cunha,Rodrigo M. de Carvalho,Luís Marcelo Tavares +3 more
TL;DR: In this paper, the performance of the main type of screen used in classification of green iron ore pellets, the roller screen, through simulations using the discrete element method was analyzed using the Hertz-Mindlin model with JKR cohesion.
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A coupled DEM-SPH model for moisture migration in unsaturated granular material under oscillation
TL;DR: In this paper, a method of coupling the Discrete Element Method (DEM) and the Smoothed Particle Hydrodynamics (SPH) was proposed to investigate moisture migration in unsaturated granular materials under oscillation.
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An image-based method for online measurement of the size distribution of iron green pellets using dual morphological reconstruction and circle-scan
TL;DR: A novel image segmentation algorithm is proposed, with which overlapped pellets in the image can be well separated and thus the PSD of iron green pellets can be measured online with good accuracy and be satisfied for online PSD measurement in harsh environment of the pelletizing process.
References
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Journal ArticleDOI
The non-smooth contact dynamics method
TL;DR: In this article, the main features of the non-smooth contact dynamics method are presented, the use of the dynamical equation, the nonsmooth modelling of unilateral contact and Coulomb's law, fully implicit algorithms to solve the dynamic frictional contact problem for systems with numerous contacting points, in particular large collections of rigid or deformable bodies.
Journal ArticleDOI
Model for collisions in granular gases
TL;DR: A model for collisions between particles of a granular material is proposed and it is found that the type of collision is determined by the impact velocity and by the surface properties of the colliding grains.
Journal ArticleDOI
Assessment of rolling resistance models in discrete element simulations
TL;DR: A review of the commonly used models for rolling resistance and a more general model is presented in this article, where the robustness of these models in reproducing rolling resistance effects arising from different physical situations was assessed by using several benchmarking test cases.
Book
Computational Granular Dynamics: Models and Algorithms
Thorsten Pöschel,Thomas Schwager +1 more
TL;DR: In this paper, Brownian Dynamics for the Simulation of Granular Flows is used to simulate the simulation of granular flows in a dynamical model with event-driven molecular dynamics.