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dc.contributor.authorWang, F.
dc.contributor.authorHuai, W.
dc.contributor.authorGuo, Yakun
dc.date.accessioned2021-04-15T09:31:40Z
dc.date.accessioned2021-05-06T14:22:06Z
dc.date.available2021-04-15T09:31:40Z
dc.date.available2021-05-06T14:22:06Z
dc.date.issued2021-06
dc.identifier.citationWang F, Huai W and Guo Y (2021) Analytical model for the suspended sediment concentration in the ice-covered alluvial channels. Journal of Hydrology. 597: 126338.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18453
dc.descriptionYesen_US
dc.description.abstractIce cover formed on an alluvial channel can significantly alter the flow characteristics, such as the vertical distributions of streamwise velocity and shear stress, and hence the water and sediment transport process. The vertical profile of the suspended sediment concentration in the ice-covered alluvial channels with steady uniform flows is investigated in this study. To calculate the suspended sediment concentration, we are based on the Schmidt O’Brien equation and deduce an analytical model that employs an existing eddy viscosity model and a modified formula of the sediment fall velocity considering the common effects of the upper and lower boundaries. The proposed analytical model is then validated by using available experimental data reported in the literature. The predicted accuracy of the proposed model is evaluated through error statistics by comparing to previous modeled results. The relative concentration profiles of the suspended sediment are subsequently simulated by applying the validated analytical model with different characteristic parameters. Results show that the relative concentration decreases with the increase of both the ice cover roughness and the sediment fall velocity. The uniformity of the relative concentration distribution is closely related to the value of the proportionality parameter σ, revealing the physical mechanism that the more prominent the turbulent diffusion effect is, the more uniform the relative concentration profile is.en_US
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (grant 604 numbers 52020105006 and 11872285) and the Open Funding of State Key Laboratory of Water Resources and Hydropower Engineering Science (WRHES), Wuhan University (Project number 2018HLG01).en_US
dc.language.isoenen_US
dc.publisherElsevier
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.jhydrol.2021.126338en_US
dc.rights© 2021 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.en_US
dc.subjectSuspended sediment concentrationen_US
dc.subjectIce-covered channelen_US
dc.subjectAnalytical modelen_US
dc.subjectModified sediment fall velocityen_US
dc.titleAnalytical model for the suspended sediment concentration in the ice-covered alluvial channelsen_US
dc.status.refereedYesen_US
dc.date.Accepted2021-04-12
dc.date.application2021-04-16
dc.typeArticleen_US
dc.date.EndofEmbargo2022-02-16
dc.type.versionAccepted manuscripten_US
dc.description.publicnotesThe full-text of this article will be released for public view at the end of the publisher embargo on 16th Apr 2022.
dc.date.updated2021-04-15T08:31:48Z
refterms.dateFOA2021-05-06T14:22:44Z
dc.openaccess.statusGreenen_US


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