NDLI: Fragments spawning and interaction models for DEM breakage simulation

Content Provider	Springer Nature Link
Author	Brosh, Tamir Kalman, Haim Levy, Avi
Copyright Year	2011
Abstract	Particles breakage occurs in many industrial applications. During the last decade many works have been devoted for modelling and simulating such processes. A new and innovative procedure of empirical comminution functions for Discrete Element Method (DEM) simulations (Kalman et al. in Granul Matter 11(4):253–266, 2009) posed the question how to introduce the fragments of the broken particle back into the computational domain. Daughter particles (Fragments) spawning and interaction imposes several problems during DEM simulation. Some of the main problems are: seeding (allocating) daughter particles and their initial conditions i.e. fragments locations, velocities and physical properties. This work focuses on the daughter particles seeding and the interaction between “sibling” particles for spherical particles. Fragments spawning and interaction algorithm for particle breakage during DEM simulation was developed. The algorithm enables prediction of particle comminution/attrition processes using DEM applications. The new algorithm can utilize any breakage function allowing unlimited fragment size fractions. In the proposed model, sibling particles can overlap without increasing the energy of the system in the simulation. Particle-particle and particle-wall interactions are calculated using the standard DEM calculations. Daughter particles interactions were calculated using the developed temporary contact radius model. The model was utilized to predict particle comminution in jet milling and particle attrition during pneumatic conveying with great successes.
Starting Page	765
Ending Page	776
Page Count	12
File Format	PDF
ISSN	14345021
Journal	Granular Matter
Volume Number	13
Issue Number	6
e-ISSN	14347636
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-10-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Particle breakage Fragment generation Fragment seeding Fragment interaction Soft and Granular Matter, Complex Fluids and Microfluidics Industrial Chemistry/Chemical Engineering Engineering Thermodynamics, Heat and Mass Transfer Geoengineering, Foundations, Hydraulics Engineering Fluid Dynamics Materials Science
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanics of Materials Materials Science

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