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dc.contributor.authorBaranya, S
dc.contributor.authorOlsen, Nils Reidar Bøe
dc.contributor.authorStoesser, T
dc.contributor.authorSturm, T
dc.identifier.citationEngineering Applications of Computational Fluid Mechanics. 2012, 6 (4), 648-662.nb_NO
dc.description.abstractThe paper introduces a three-dimensional numerical model that solves the Reynolds Averaged Navier-Stokes (RANS) equations on a curvilinear grid system using a novel nested grid approach. The main benefit of the model is the possibility to model locally complex hydraulic features in large rivers like the flow field at hydraulic structures. The entire study domain in such a case can be discretized with a coarser resolution, whereas a much finer resolution can be applied to a defined zone of the obstructions, where a detailed description of the flow field is needed. The model is tested on a laboratory experiment carried out at the Georgia Institute of Technology, where the flow field around a single and two double circular cylinders in a flatbed flume was studied. Simulated flow velocity, turbulent kinetic energy and bed shear stress distributions are in good agreement with measurements. However, deviations downstream of the piers indicate the limitation of the steady state description of the flow in the unstable wake zone. Nevertheless, the nested grid approach presented herein is a promising step towards the modeling of the local scouring phenomenon due to the relatively low computational demand.nb_NO
dc.publisherTaylor & Francisnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleThree-Dimensional Rans Modeling of Flow Around Circular Piers using Nested Gridsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalEngineering Applications of Computational Fluid Mechanicsnb_NO
dc.relation.projectNotur/NorStore: NN4558Knb_NO
dc.relation.projectNorges forskningsråd: 171100nb_NO
dc.description.localcode© 2012 The Author(s). Published by Taylor & Francis. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.nb_NO
cristin.unitnameInstitutt for bygg- og miljøteknikk

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal