Hdl Handle:
http://hdl.handle.net/10149/94356
Title:
Vibration induced flow in hoppers: DEM 2D polygon model
Authors:
Fraige, F. Y. (Feras); Langston, P. A. (Paul); Matchett, A. J. (Andrew); Dodds, J. (John)
Affiliation:
University of Teesside. Chemical Engineering.
Citation:
Fraige, F. Y. et. el. (2008) 'Vibration induced flow in hoppers: DEM 2D polygon model', Particuology, 6 (6) pp.455-466.
Publisher:
Elsevier
Journal:
Particuology
Issue Date:
Dec-2008
URI:
http://hdl.handle.net/10149/94356
DOI:
10.1016/j.partic.2008.07.019
Abstract:
A two-dimensional discrete element model (DEM) simulation of cohesive polygonal particles has been developed to assess the benefit of point source vibration to induce flow in wedge-shaped hoppers. The particle-particle interaction model used is based on a multi-contact principle. The first part of the study investigated particle discharge under gravity without vibration to determine the critical orifice size (Bc) to just sustain flow as a function of particle shape. It is shown that polygonal-shaped particles need a larger orifice than circular particles. It is also shown that Bc decreases as the number of particle vertices increases. Addition of circular particles promotes flow of polygons in a linear manner. The second part of the study showed that vibration could enhance flow, effectively reducing Bc. The model demonstrated the importance of vibrator location (height), consistent with previous continuum model results, and vibration amplitude in enhancing flow.
Type:
Article
Language:
en
Keywords:
bulk solids; DEM; hoppers; materials handling; polygon; vibration
ISSN:
1674-2001
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 16/03/2010]
Citation Count:
0 [Scopus, 16/03/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorFraige, F. Y. (Feras)en
dc.contributor.authorLangston, P. A. (Paul)en
dc.contributor.authorMatchett, A. J. (Andrew)en
dc.contributor.authorDodds, J. (John)en
dc.date.accessioned2010-03-16T15:01:59Z-
dc.date.available2010-03-16T15:01:59Z-
dc.date.issued2008-12-
dc.identifier.citationParticuology; 6 (6): 455-466en
dc.identifier.issn1674-2001-
dc.identifier.doi10.1016/j.partic.2008.07.019-
dc.identifier.urihttp://hdl.handle.net/10149/94356-
dc.description.abstractA two-dimensional discrete element model (DEM) simulation of cohesive polygonal particles has been developed to assess the benefit of point source vibration to induce flow in wedge-shaped hoppers. The particle-particle interaction model used is based on a multi-contact principle. The first part of the study investigated particle discharge under gravity without vibration to determine the critical orifice size (Bc) to just sustain flow as a function of particle shape. It is shown that polygonal-shaped particles need a larger orifice than circular particles. It is also shown that Bc decreases as the number of particle vertices increases. Addition of circular particles promotes flow of polygons in a linear manner. The second part of the study showed that vibration could enhance flow, effectively reducing Bc. The model demonstrated the importance of vibrator location (height), consistent with previous continuum model results, and vibration amplitude in enhancing flow.en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsAuthor can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 16/03/2010]en
dc.subjectbulk solidsen
dc.subjectDEMen
dc.subjecthoppersen
dc.subjectmaterials handlingen
dc.subjectpolygonen
dc.subjectvibrationen
dc.titleVibration induced flow in hoppers: DEM 2D polygon modelen
dc.typeArticleen
dc.contributor.departmentUniversity of Teesside. Chemical Engineering.en
dc.identifier.journalParticuologyen
ref.citationcount0 [Scopus, 16/03/2010]en
or.citation.harvardFraige, F. Y. et. el. (2008) 'Vibration induced flow in hoppers: DEM 2D polygon model', Particuology, 6 (6) pp.455-466.-
All Items in TeesRep are protected by copyright, with all rights reserved, unless otherwise indicated.