dspaceThe Cape Peninsula University of Technology (CPUT) Electronic Theses and Dissertations (ETD) repository holds full-text theses and dissertations submitted for higher degrees at the University (including submissions from former Cape Technikon and Peninsula Technikon).

Show simple item record

dc.contributor.advisorOliver, Graeme JohnEN
dc.contributor.authorZengeni, Brian Tonderai
dc.date.accessioned2017-05-29T05:57:49Z
dc.date.available2017-05-29T05:57:49Z
dc.date.issued2016
dc.identifier.urihttp://hdl.handle.net/20.500.11838/2458
dc.descriptionThesis (MTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2016.en_US
dc.description.abstractThis dissertation presents how material properties (solids densities, particle size distributions, particle shapes and concentration) of gold tailings slurries are related to their rheological parameters, which are yield stress and viscosity. In this particular case Bingham yield stresses and Bingham plastic viscosities. Predictive models were developed from analysing data in a slurry database to predict the Bingham yield stresses and Bingham plastic viscosities from their material properties. The overall goal of this study was to develop a validated set of mathematical models to predict Bingham yield stresses and Bingham plastic viscosities from their material properties. The interaction of the non-Newtonian material properties is very complex at varying mass solids concentrations. The evaluation of these interactions in terms of constitutive equations is almost impossible and the relationship between material properties, mass solids concentration and rheology can only be modelled in a statistical manner. The validity of each model is checked to ensure that predictions and interpretations are unbiased and efficient. This is done by comparing the resulting models to experimental data generated from test work. An in-depth analysis was conducted to see the interrelationship between the material properties and how they affect the yield stress and viscosity values.en_US
dc.language.isoenen_US
dc.publisherCape Peninsula University of Technologyen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/za/
dc.subjectNon-Newtonian fluidsen_US
dc.subjectRheologyen_US
dc.subjectSlurry -- Viscosityen_US
dc.subjectSlurry pipelinesen_US
dc.titleBingham yield stress and Bingham plastic viscosity of homogeneous Non-Newtonian slurriesen_US
dc.typeThesisen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

http://creativecommons.org/licenses/by-nc-sa/3.0/za/
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-sa/3.0/za/