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dc.contributor.authorHaun, Stefan
dc.contributor.authorOlsen, Nils Reidar Bøe
dc.contributor.authorFeurich, Robert
dc.date.accessioned2017-11-29T13:22:07Z
dc.date.available2017-11-29T13:22:07Z
dc.date.created2011-10-26T13:23:22Z
dc.date.issued2011
dc.identifier.citationEngineering Applications of Computational Fluid Mechanics. 2011, 5 (3), 397-405.nb_NO
dc.identifier.issn1994-2060
dc.identifier.urihttp://hdl.handle.net/11250/2468545
dc.description.abstractTwo computational fluid dynamics (CFD) codes, Flow-3D and SSIIM 2, have been used to calculate the water flow over a trapezoidal broad-crested weir. The two programs apply different algorithms for making the grid and computing the free water surface. Flow-3D uses the Volume of Fluid (VOF) method with a fixed grid, while SSIIM 2 uses an algorithm based on the continuity equation and the Marker-and-Cell method, together with an adaptive grid for the water surface. The results have been compared with measurements from a physical model study, using different discharges. The deviation between the computed and measured upstream water level was between 1.0 and 3.5%. The difference between the results from the two CFD models was in the range of 1–1.5%. The accuracy of the algorithms depends on the grid size. The computational time on one core of a CPU (Intel Q9650 3.00 GHz) was between 435 and 15,500 seconds, using between 6,350 and 10,000 cells.nb_NO
dc.language.isoengnb_NO
dc.publisherTaylor & Francisnb_NO
dc.titleNumerical Modeling of Flow Over Trapezoidal Broad-Crested Weirnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber397-405nb_NO
dc.source.volume5nb_NO
dc.source.journalEngineering Applications of Computational Fluid Mechanicsnb_NO
dc.source.issue3nb_NO
dc.identifier.doi10.1080/19942060.2011.11015381
dc.identifier.cristin848115
dc.relation.projectNorges forskningsråd: 191035nb_NO
dc.description.localcodeCopyright 2011 Taylor and Francis Group LLC. This is an open access article published by Taylor & Francis in [Engineering Applications of Computational Fluid Mechanics] on [19 Nov 2014]nb_NO
cristin.unitcode194,64,91,0
cristin.unitnameInstitutt for bygg- og miljøteknikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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