A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills

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dc.contributor.advisorBuffler, Andyen_ZA
dc.contributor.advisorGovender, Indresanen_ZA
dc.contributor.authorMalahe, Michaelen_ZA
dc.date.accessioned2014-12-31T20:02:01Z
dc.date.available2014-12-31T20:02:01Z
dc.date.issued2012en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThere is a great need in the minerals processing industry for accurate prediction of slurry flows in tumbling mills. This flow is currently best understood through empirical, mechanistic and computational models. In the case of computational models, a realistic description of the system requires two fluid phases (for slurry and air) and one solid phase (for the charge). Existing 3-phase work makes use of a purely particle-based description, coupling the discrete element method (DEM) for the solids with smoothed particle hydrodynamics (SPH) for the fluids. This work is the first presentation of a 3-phase approach for tumbling mills that combines a particle description for the solids, DEM, and a continuum description for the fluids, computational fluid dynamics (CFD). In this approach, the phase coupling is only one-way, in the sense that forces are applied from the solids to the fluids, but not the other way around. In the course of developing the approach, some computational geometry algorithms are presented for efficiently converting the particle description of DEM into an appropriate continuum description for CFD.en_ZA
dc.identifier.apacitationMalahe, M. (2012). <i>A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Physics. Retrieved from http://hdl.handle.net/11427/10792en_ZA
dc.identifier.chicagocitationMalahe, Michael. <i>"A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Physics, 2012. http://hdl.handle.net/11427/10792en_ZA
dc.identifier.citationMalahe, M. 2012. A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Malahe, Michael AB - There is a great need in the minerals processing industry for accurate prediction of slurry flows in tumbling mills. This flow is currently best understood through empirical, mechanistic and computational models. In the case of computational models, a realistic description of the system requires two fluid phases (for slurry and air) and one solid phase (for the charge). Existing 3-phase work makes use of a purely particle-based description, coupling the discrete element method (DEM) for the solids with smoothed particle hydrodynamics (SPH) for the fluids. This work is the first presentation of a 3-phase approach for tumbling mills that combines a particle description for the solids, DEM, and a continuum description for the fluids, computational fluid dynamics (CFD). In this approach, the phase coupling is only one-way, in the sense that forces are applied from the solids to the fluids, but not the other way around. In the course of developing the approach, some computational geometry algorithms are presented for efficiently converting the particle description of DEM into an appropriate continuum description for CFD. DA - 2012 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 T1 - A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills TI - A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills UR - http://hdl.handle.net/11427/10792 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/10792
dc.identifier.vancouvercitationMalahe M. A one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling mills. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Physics, 2012 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/10792en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Physicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPhysicsen_ZA
dc.titleA one-way coupled DEM-CFD scheme to mode free-surface flows in tumbling millsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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