Show simple item record

dc.contributor.authorZhang, C
dc.contributor.authorSoga, K
dc.contributor.authorKumar, K
dc.contributor.authorSun, Q
dc.contributor.authorJin, F
dc.date.accessioned2018-01-19T18:16:30Z
dc.date.available2018-01-19T18:16:30Z
dc.date.issued2017-11
dc.identifier.issn1434-5021
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/270851
dc.description.abstractThe descending process of a sphere rolling and/or sliding along an inclined slope in a liquid involves interactions between the hydrodynamic forces on the sphere and the contact forces between the sphere and the plane. In this study, the descending process of sphere in a liquid was examined using coupled LBM-DEM technique. The effects of slope angle, viscosity and friction coefficient on the movement of a sphere were investigated. Two distinct descending patterns were observed: (a) a stable rolling/sliding movement along the slope, and (b) a fluctuating pattern along the slope. Five dimensionless coefficients (Reynolds number (Re), drag coefficient, lift coefficient, moment coefficient and rolling coefficient) were used to analyze the observed processes. The vortex structure in the wake of the sphere gives a lift force to the sphere, which in turn controls the different descending patterns. It is found that the generation of a vortex is not only governed by Re, but also by particle rotation. Relationships between the forces/moments and the dimensionless coefficients are established.
dc.publisherSpringer Science and Business Media LLC
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleNumerical study of a sphere descending along an inclined slope in a liquid
dc.typeArticle
prism.issueIdentifier4
prism.publicationDate2017
prism.publicationNameGranular Matter
prism.volume19
dc.identifier.doi10.17863/CAM.17782
dcterms.dateAccepted2017-10-09
rioxxterms.versionofrecord10.1007/s10035-017-0768-8
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.licenseref.startdate2017-11-01
dc.contributor.orcidKumar, K [0000-0003-2144-5562]
dc.identifier.eissn1434-7636
rioxxterms.typeJournal Article/Review
cam.issuedOnline2017-11-01
cam.orpheus.successThu Jan 30 12:59:52 GMT 2020 - The item has an open VoR version.
rioxxterms.freetoread.startdate2100-01-01


Files in this item

Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International