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dc.contributor.authorHuai, W.
dc.contributor.authorYang, L.
dc.contributor.authorWang, W-J.
dc.contributor.authorGuo, Yakun
dc.contributor.authorWang, T.
dc.contributor.authorCheng, Y.
dc.date.accessioned2019-10-03T09:05:57Z
dc.date.available2019-10-03T09:05:57Z
dc.date.issued2019-11
dc.identifier.citationHuai W, Yang L, Wang W-J et al (2019) Predicting the vertical low suspended sediment concentration in vegetated flow using a random displacement model. Journal of Hydrology. 578: 124101.en_US
dc.identifier.urihttp://hdl.handle.net/10454/17285
dc.descriptionYesen_US
dc.description.abstractBased on the Lagrangian approach, this study proposes a random displacement model (RDM) to predict the concentration of suspended sediment in vegetated steady open channel flow. Validation of the method was conducted by comparing the simulated results by using the RDM with available experimental measurements for uniform open-channel flows. The method is further validated with the classical Rouse formula. To simulate the important vertical dispersion caused by vegetation in the sediment-laden open channel flow, a new integrated sediment diffusion coefficient is introduced in this study, which is equal to a coefficient multiplying the turbulent diffusion coefficient. As such, the RDM approach for sandy flow with vegetation was established for predicting the suspended sediment concentration in low-sediment-concentration flow with both the emergent and submerged vegetation. The study shows that the value of for submerged vegetation flow is larger than that for emergent vegetation flow. The simulated result using the RDM is in good agreement with the available experimental data, indicating that the proposed sediment diffusion coefficient model can be accurately used to investigate the sediment concentration in vegetated steady open channel flow.en_US
dc.description.sponsorshipNational Natural Science Foundation (No. 51439007, 11672213, and 11872285); Open Funding of State Key Laboratory of Water Resources and Hydropower Engineering Science (WRHES), Wuhan University (Project No: 2018HLG01)en_US
dc.language.isoenen_US
dc.rights© 2019 Elsevier B.V. All rights reserved. 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.subjectRandom displacement modelen_US
dc.subjectSuspended sediment concentrationen_US
dc.subjectDiffusivityen_US
dc.subjectDispersivityen_US
dc.subjectVegetated sandy flowsen_US
dc.titlePredicting the vertical low suspended sediment concentration in vegetated flow using a random displacement modelen_US
dc.status.refereedYesen_US
dc.date.Accepted2019-09-02
dc.date.application2019-09-05
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.identifier.doihttps://doi.org/10.1016/j.jhydrol.2019.124101
refterms.dateFOA2019-10-03T09:18:16Z


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