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dc.contributor.authorPu, Jaan H.
dc.contributor.authorHussain, Awesar
dc.contributor.authorGuo, Yakun
dc.contributor.authorVardakastanis, Nikolaos
dc.contributor.authorHanmaiahgari, P.R.
dc.contributor.authorLam, Dennis
dc.date.accessioned2019-06-20T13:32:40Z
dc.date.available2019-06-20T13:32:40Z
dc.date.issued2019
dc.identifier.citationPu JH, Hussain A, Guo Y et al (2019) Submerged flexible vegetation impact on open channel flow velocity distribution: An analytical modelling study on drag and friction. Water Science and Engineering. Accepted for Publication.en_US
dc.identifier.urihttp://hdl.handle.net/10454/17136
dc.descriptionYesen_US
dc.description.abstractIn this paper, an analytical model that represents the streamwise velocity distribution for open channel flow with submerged flexible vegetation is studied. In the present vegetated flow modelling, the whole flow field has been separated into two layers vertically: a vegetated layer and a non-vegetated free-water layer. Within the vegetated layer, an analysis of the mechanisms affecting water flow through flexible vegetation has been conducted. In the non-vegetated layer, a modified log-law equation that represents the velocity profile varying with vegetation height has been investigated. Based on the studied analytical model, a sensitivity analysis has been conducted to assess the influences of the drag and friction coefficients on the flow velocity. The investigated ranges of drag and friction coefficients have also been compared to published values. The findings suggest that the drag and friction coefficient values are non-constant at different depths and vegetation densities, unlike the constant values commonly suggested in literature. This phenomenon is particularly clear for flows with flexible vegetation, which is characterised by large deflection.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.wse.2019.06.003en_US
dc.rights© 2019 Hohai University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.subjectAnalytical modelen_US
dc.subjectFlexible vegetationen_US
dc.subjectFlow velocityen_US
dc.subjectFrictionen_US
dc.subjectDragen_US
dc.subjectSubmerged vegetationen_US
dc.titleSubmerged flexible vegetation impact on open channel flow velocity distribution: An analytical modelling study on drag and frictionen_US
dc.status.refereedYesen_US
dc.date.Accepted2019-04-25
dc.date.application2019-06-06
dc.typeArticleen_US
dc.type.versionPublished versionen_US
refterms.dateFOA2019-06-20T13:33:17Z


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