Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80053
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dc.contributorDepartment of Civil and Environmental Engineering-
dc.creatorChen Z-
dc.creatorLi, CW-
dc.creatorZhan, J-
dc.date.accessioned2018-12-21T07:14:47Z-
dc.date.available2018-12-21T07:14:47Z-
dc.identifier.urihttp://hdl.handle.net/10397/80053-
dc.description7th International Conference on Fluid Mechanics, ICFM 2015, 24-27 May 2015en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2015 Published by Elsevier Ltd. 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.rightsPeer-review under responsibility of the Chinese Society of Theoretical and Applied Mechanics (CSTAM)en_US
dc.rightsThe following publication Chen, Z., Li, C. W. & Zhan, J. (2015). Simulation of flows through submerged vegetation patches using macroscopic turbulence models. Procedia engineering, 2015, 126, 315-320 is available at https://dx.doi.org/10.1016/j.proeng.2015.11.194en_US
dc.subjectOpenFOAMen_US
dc.subjectTurbulence modelen_US
dc.subjectVegetation patchen_US
dc.titleSimulation of flows through submerged vegetation patches using macroscopic turbulence modelsen_US
dc.typeConference Paperen_US
dc.identifier.spage315-
dc.identifier.epage320-
dc.identifier.volume126-
dc.identifier.doi10.1016/j.proeng.2015.11.194-
dcterms.abstractMacroscopic approach incorporating the spatial averaging procedure is commonly used to investigate turbulent flows in porous media, terrestrial and aquatic canopies. In this work the hydrodynamics of flows through a semi-rigid vegetation patch (VP) was investigated with two macroscopic turbulence models. We modified the Reynolods Averaged Navier Stokes (RANS) equations to obtain the Volume Averaged (VARANS) equations and performed simulations using the open source code OpenFOAM. The numerical results of gradually varied flows over submerged VPs are compared with the corresponding experimental measurements. The results show that the macroscopic turbulence models simulate the velocity profiles with acceptable accuracy. The increase of vegetation density generates higher Reynolds stress around the top of vegetation and smaller velocity inside the VP. The two models perform differently in the computation of Reynolds stress, with the profiles from the model of Uittenbogaard (2003) requiring a shorter distance to reach the uniform state for the case of low vegetation density. Further works will be carried out to identify the cause of difference and to achieve a refined macroscopic turbulence model.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationProcedia engineering, 2015, v. 126, p. 315-320-
dcterms.isPartOfProcedia engineering-
dcterms.issued2015-
dc.identifier.scopus2-s2.0-84971350898-
dc.relation.conferenceInternational Conference on Fluid Mechanics [ICFM]-
dc.identifier.eissn1877-7058-
dc.description.validate201812 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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