Discrete element method: Difference between revisions

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* Mining
* Mineral processing
* Pharmaceutical industry<ref>{{Cite journal|last1=Behjani|first1=Mohammadreza Alizadeh|last2=Motlagh|first2=Yousef Ghaffari|last3=Bayly|first3=Andrew|last4=Hassanpour|first4=Ali|date=2019-11-07|title=Assessment of blending performance of pharmaceutical powder mixtures in a continuous mixer using Discrete Element Method (DEM)|url=http://www.sciencedirect.com/science/article/pii/S0032591019309313|journal=Powder Technology|volume=366|pages=73–81|doi=10.1016/j.powtec.2019.10.102|s2cid=209718900 |issn=0032-5910|archive-url=http://eprints.whiterose.ac.uk/157493/|archive-date=21 Feb 2020|url-access=subscription}}</ref>
* [[Powder metallurgy]]
 
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==Thermal DEM==
The discrete element method is widely applied for the consideration of mechanical interactions in many-body problems, particularly granular materials. Among the various extensions to DEM, the consideration of heat flow is particularly useful. Generally speaking in Thermal DEM methods, the thermo-mechanical coupling is considered, whereby the thermal properties of an individual element are considered in order to model heat flow through a macroscopic granular or multi-element medium subject to a mechanical loading.<ref>{{cite journal | arxiv=1406.4199 | doi=10.13182/FST13-727 | title=Thermal Discrete Element Analysis of EU Solid Breeder Blanket Subjected to Neutron Irradiation | year=2014 | last1=Gan | first1=Yixiang | last2=Hernandez | first2=Francisco | last3=Hanaor | first3=Dorian | last4=Annabattula | first4=Ratna | last5=Kamlah | first5=Marc | last6=Pereslavtsev | first6=Pavel | journal=Fusion Science and Technology | volume=66 | issue=1 | pages=83–90 | bibcode=2014FuST...66...83G | s2cid=51903434 }}</ref> Interparticle forces, computed as a part of classical DEM, are used to determined areas of true interparticle contact and thus model the conductive transfer of heat from one solid element to another. A further aspect that is considered in DEM is the gas phase conduction, radiation and convection of heat in the interparticle spaces. To facilitate this, properties of the inter-element gaseous phase need to be considered in terms of pressure, gas conductivity and the mean-free path of gas molecules.<ref>{{cite journal | url=https://www.sciencedirect.com/science/article/pii/S0032591013002702 | doi=10.1016/j.powtec.2013.04.013 | title=Thermal DEM–CFD modeling and simulation of heat transfer through packed bed | year=2013 | last1=Tsory | first1=Tal | last2=Ben-Jacob | first2=Nir | last3=Brosh | first3=Tamir | last4=Levy | first4=Avi | journal=Powder Technology | volume=244 | pages=52–60 | url-access=subscription }}</ref>
 
==Long-range forces==