Numerical investigation of particle cloud sedimentation in power-law shear-thinning fluids for moderate Reynolds number

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dc.contributor.authorGuo, Junwei
dc.contributor.authorZhou, Qi
dc.contributor.authorWong, Ron Chik-Kwong
dc.date.accessioned2021-09-07T17:36:59Z
dc.date.available2022-09-07T17:36:59Z
dc.date.issued2021-09-03
dc.description.abstractA series of numerical simulations are performed for the sedimentation process of a particle cloud in shear-thinning fluids using lattice Boltzmann and discrete element methods. The initial particle concentration, , and the power-law index of the fluid, n, and Reynolds number, , are varied in these simulations. For , the particle cloud size grows in the longitudinal direction as the cloud settles, leading to reduced particle concentration and a quasi-steady settling velocity, . The velocity ratio, , where is the corresponding single-particle terminal velocity, is found to decrease with both n and . This velocity ratio is only weakly dependent on the initial concentration () due to particle dispersion. For , the cloud loses its initial shape and disintegrates while settling, with particles escaping from the cloud due to differential particle settling velocities.en_US
dc.description.grantingagencyNatural Sciences and Engineering Research Council (NSERC)en_US
dc.identifier.citationGuo, J., Zhou, Q., & Wong, R. C. K. (2021). Numerical investigation of particle cloud sedimentation in power-law shear-thinning fluids for moderate Reynolds number. Chemical Engineering Science, 117066.en_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.ces.2021.117066en_US
dc.identifier.urihttp://hdl.handle.net/1880/113827
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.publisher.departmentCivil Engineeringen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.hasversionacceptedVersionen_US
dc.publisher.institutionUniversity of Calgaryen_US
dc.publisher.policyhttps://www.elsevier.com/open-access/journal-embargo-finder/journal-embargo-finder-results?meta_t=Chemical+Engineering+Science&meta_s=&meta_i=&meta_w=&embargo=true&start_rank=1&fmo=1&meta_w_not=n.a.en_US
dc.rightsUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectsedimentationen_US
dc.subjectparticle clouden_US
dc.subjectnon-Newtonian fluidsen_US
dc.subjectLattice Boltzmann methoden_US
dc.subjectdiscrete element methoden_US
dc.titleNumerical investigation of particle cloud sedimentation in power-law shear-thinning fluids for moderate Reynolds numberen_US
dc.typejournal articleen_US
ucalgary.item.requestcopytrueen_US
ucalgary.scholar.levelFacultyen_US
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