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dc.contributor.authorPu, Jaan H.
dc.contributor.authorPandey, M.
dc.contributor.authorHanmaiahgari, P.R.
dc.date.accessioned2020-07-28T03:55:18Z
dc.date.accessioned2020-08-14T12:43:20Z
dc.date.available2020-07-28T03:55:18Z
dc.date.available2020-08-14T12:43:20Z
dc.date.issued2020-10
dc.identifier.citationPu JH, Pandey M and Hanmaiahgari PR (2020) Analytical modelling of sidewall turbulence effect on streamwise velocity profile using 2D approach: A comparison of rectangular and trapezoidal open channel flows. Journal of Hydro-Environment Research. 32: 17-25.en_US
dc.identifier.urihttp://hdl.handle.net/10454/17964
dc.descriptionYesen_US
dc.description.abstractNatural earth-bounded channel flows usually subject to various sidewall turbulences, i.e. in the form of secondary currents, due to non-constant channel shapes at different sections. This paper investigates an improved Shiono-Knight model (SKM) by combining it with a Multi-Zonal (MZ) method (proposed by Pu, 2019) to represent lateral flow turbulence and secondary currents in different shapes of open channel, i.e. rectangular and trapezoidal. By applying the proposed analytical model to both rectangular and trapezoidal channel flows, we have inspected different streamwise velocity characteristics across transverse direction generated by their sidewalls in order to provide crucial fundamental understanding to real-world natural flow system. The proposed model has also been validated via various experimental data conducted in national UK Flood Channel Facility (UK-FCF). It has been observed that the trapezoidal channel has created a larger sidewall zone where secondary current can affect flow velocity; however, the intensity of the secondary flow in trapezoidal channel has been found lesser than that of the rectangular channel. By improving the modelling of natural flow at sidewall, the studied approach could be adapted into different existing analytical models to improve their accuracy.en_US
dc.language.isoenen_US
dc.rights© 2020 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 (http://creativecommons.org/licenses/by-nc-nd/4.0/)en_US
dc.subjectLateral velocity distributionen_US
dc.subjectMulti-zonal modelen_US
dc.subjectNatural flowen_US
dc.subjectRectangular channelen_US
dc.subjectSecondary flowen_US
dc.subjectShiono-Knight Methoden_US
dc.subjectSidwall turbulenceen_US
dc.subjectTrapezoidal channelen_US
dc.titleAnalytical modelling of sidewall turbulence effect on streamwise velocity profile using 2D approach: A comparison of rectangular and trapezoidal open channel flowsen_US
dc.status.refereedYesen_US
dc.date.Accepted2020-06-24
dc.date.application2020-07-16
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.identifier.doihttps://doi.org/10.1016/j.jher.2020.06.002
dc.date.updated2020-07-28T02:55:31Z
refterms.dateFOA2020-08-14T12:43:46Z


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