Secondary flow in semi-circular ducts

dc.contributor.authorLarsson, I.A.S.
dc.contributor.authorLindmark, E.M.
dc.contributor.authorLundström, T.S.
dc.contributor.authorNathan, G.J.
dc.date.accessioned2014-12-13T07:23:21Z
dc.date.available2014-12-13T07:23:21Z
dc.date.issued2011
dc.description.abstractPaper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.en_ZA
dc.description.abstractTurbulent secondary flows are motions in the transverse plane, perpendicular to a main, axial flow. They are encountered in non-circular ducts and, although the velocity is only of the order of 1-3% of the streamwise bulk velocity, can still affect the characteristics of the mean flow and the turbulent structure. In this work the focus is on secondary flow in semicircular ducts. Both numerical and experimental analyses are reported. It is found that the secondary flow in semi-circular ducts consists of two pairs of counter rotating corner vortices, with a velocity in the range reported previously for related configurations. Agreement between simulation and experimental results are good when using a second moment closure turbulence model.en_ZA
dc.description.librarianmp2014en_ZA
dc.format.extent8 pagesen_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationLarsson, IAS, Lindmark, EM, Lundström, TS & Nathan, GJ 2011, Secondary flow in semi-circular ducts, Paper presented to the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.en_ZA
dc.identifier.urihttp://hdl.handle.net/2263/42958
dc.language.isoenen_ZA
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.relation.ispartofHEFAT 2011en_US
dc.rightsUniversity of Pretoriaen_ZA
dc.subjectSemi-circular ductsen_ZA
dc.subjectSecondary flowen_ZA
dc.subjectNumerical analysesen_ZA
dc.subjectExperimental analysesen_ZA
dc.titleSecondary flow in semi-circular ductsen_ZA
dc.typePresentationen_ZA

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