Wake simulations in shallow flows

dc.contributor.authorNasif, G.
dc.contributor.authorBarron, R.
dc.contributor.authorBalachandar, R.
dc.date.accessioned2014-12-08T12:22:39Z
dc.date.available2014-12-08T12:22:39Z
dc.date.issued2012
dc.description.abstractPaper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_US
dc.description.abstractThree-dimensional numerical modeling using Detached Eddy Simulation (DES) has been carried out to study the characteristics of shallow wake flow. The features of shallow wake flows are highly dependent on the bed characteristics, the free surface and the non-uniform approaching flow velocity profile. An approaching flow with fully developed boundary layer was employed to model the effect of the shallow flow. The shallow wake is generated by introducing a disturbance in the form of a bluff body placed in an open channel. A sharp- edged bluff body is used to reduce the flow sensitivity to Reynolds number and maintain a constant position for boundary layer separation. The flow field structure in the wake i.e., the mean and turbulence characteristics, are examined and compared at different downstream locations to evaluate the effect of vertical variability from the bed. Available experimental data have been used to validate the computational results.en_US
dc.description.librariandc2014en_US
dc.format.extent6 pagesen_US
dc.format.mediumPDFen_US
dc.identifier.citationNasif, G, Barron, R & Balachandar, R 2012, Wake simulations in shallow flows, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_US
dc.identifier.isbn9781868549863
dc.identifier.urihttp://hdl.handle.net/2263/42871
dc.language.isoenen_US
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_US
dc.relation.ispartofHEFAT 2012en_US
dc.rightsUniversity of Pretoriaen_US
dc.subjectDetached Eddy Simulationen_US
dc.subjectDESen_US
dc.subjectThree-dimensional numerical modelingen_US
dc.subjectCharacteristics of shallow wake flowen_US
dc.subjectFlow velocity profileen_US
dc.subjectBoundary layer separationen_US
dc.subjectTurbulence characteristicsen_US
dc.subjectShallow wake flowen_US
dc.titleWake simulations in shallow flowsen_US
dc.typePresentationen_US

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