dc.contributor.authorCheng, Nian-Sheng
dc.contributor.authorQiao, Changkai
dc.contributor.authorChen, Xingwei
dc.contributor.authorLiu, Xingnian
dc.identifier.citationCheng, N.-S., Qiao, C., Chen, X., & Liu, X. (2014). Application of pseudo-fluid approximation to evaluation of flow velocity through gravel beds. Powder Technology, 260, 15-21.en_US
dc.description.abstractFlows seeping through a gravel bed are usually non-Darcian and closely related to non-linear drag. Such flows may be significantly affected by particle shape and bed configuration. In this study, a pseudo-fluid model is developed to calculate average flow velocity through gravel beds. The proposed approach is able to take into account particle shape effect using the drag coefficient associated with an isolated sediment grain and also bed configuration effect in terms of apparent viscosity. The model was then calibrated with ten series of laboratory data, which were collected using vertical columns packed with spherical and natural gravels. Finally, the model was successfully applied to estimate total flow discharges for laboratory-scale open channel flows over a gravel bed.en_US
dc.format.extent28 p.en_US
dc.relation.ispartofseriesPowder technologyen_US
dc.rights© 2014 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Powder Technology, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1016/j.powtec.2014.03.065en_US
dc.subjectDRNTU::Engineering::Mechanical engineering::Fluid mechanics
dc.titleApplication of pseudo-fluid approximation to evaluation of flow velocity through gravel bedsen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.versionAccepted versionen_US

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