DEM investigation of granular flow and binary mixture segregation in a rotating tumbler: Influence of particle shape and internal baffles
Identifieur interne : 000055 ( Main/Exploration ); précédent : 000054; suivant : 000056DEM investigation of granular flow and binary mixture segregation in a rotating tumbler: Influence of particle shape and internal baffles
Auteurs : Riccardo Maione [France] ; Sebastien Kiesgen De Richter ; Guillain Mauviel [France] ; Gabriel Wild [France]Source :
- Powder Technology [ 0032-5910 ] ; 2015-12.
Abstract
A horizontal rotating tumbler provided with internal baffles and containing a mixture of two types of particles is investigated by discrete element method (DEM) simulations. The main objective of this study is to characterize the dynamics of a rotary kiln containing spherical steel balls and wood particles, investigating the effect of internal baffles and wood chip particle shape on segregation. The results show that the presence of baffles imposes a cyclic behavior to the solid bed and that the magnitude of this cyclic behavior depends on the solid holdup. The wood particle shape effects are analyzed considering two different approaches: a spherical approximation and a multisphere approximation. The differences between these two approaches are mitigated at relatively high velocity. This type of simulation can also serve for baffle sizing.
Url:
DOI: 10.1016/j.powtec.2015.09.011
Affiliations:
- France
- Grand Est, Lorraine (région)
- Metz, Nancy
- Centre national de la recherche scientifique, Laboratoire réactions et génie des procédés, Université de Lorraine
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The main objective of this study is to characterize the dynamics of a rotary kiln containing spherical steel balls and wood particles, investigating the effect of internal baffles and wood chip particle shape on segregation. The results show that the presence of baffles imposes a cyclic behavior to the solid bed and that the magnitude of this cyclic behavior depends on the solid holdup. The wood particle shape effects are analyzed considering two different approaches: a spherical approximation and a multisphere approximation. The differences between these two approaches are mitigated at relatively high velocity. This type of simulation can also serve for baffle sizing.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Metz</li><li>Nancy</li></settlement><orgName><li>Centre national de la recherche scientifique</li><li>Laboratoire réactions et génie des procédés</li><li>Université de Lorraine</li></orgName></list><tree><noCountry><name sortKey="De Richter, Sebastien Kiesgen" sort="De Richter, Sebastien Kiesgen" uniqKey="De Richter S" first="Sebastien Kiesgen" last="De Richter">Sebastien Kiesgen De Richter</name></noCountry><country name="France"><region name="Grand Est"><name sortKey="Maione, Riccardo" sort="Maione, Riccardo" uniqKey="Maione R" first="Riccardo" last="Maione">Riccardo Maione</name></region><name sortKey="Mauviel, Guillain" sort="Mauviel, Guillain" uniqKey="Mauviel G" first="Guillain" last="Mauviel">Guillain Mauviel</name><name sortKey="Wild, Gabriel" sort="Wild, Gabriel" uniqKey="Wild G" first="Gabriel" last="Wild">Gabriel Wild</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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