Effect of free-stream turbulence on fluid flow and heat transfer from square cylinder

dc.contributor.authorRanjan, P.en
dc.contributor.authorDewan, A.en
dc.contributor.authorKumar, S.en
dc.date.accessioned2017-09-19T12:48:35Z
dc.date.available2017-09-19T12:48:35Z
dc.date.issued2017en
dc.descriptionPapers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .en
dc.description.abstractSimulations were carried out to study the effect of free-stream turbulence (FST) on forced convection from a heated square cylinder in a cross-flow. The computations were performed using LES methodology with the dynamic Smagorinsky model used for the sub-grid stress modelling. The values of the inlet turbulence intensity considered were 4, 8 and 12% at a Reynolds number of 16000. It has been observed that the mean drag and pressure coefficient increases with inlet turbulence, but the Strouhal number remains unchanged. Heat transfer from the side faces increases sharply with inflow turbulence than that at the back face. The rise in Nu for rear face is approximately 15% compared to 35% rise for the side face from the smooth flow to 12% FST case.en
dc.description.sponsorshipInternational centre for heat and mass transfer.en
dc.description.sponsorshipAmerican society of thermal and fluids engineers.en
dc.format.extent7 pagesen
dc.format.mediumPDFen
dc.identifier.urihttp://hdl.handle.net/2263/62390
dc.language.isoenen
dc.publisherHEFATen
dc.rightsUniversity of Pretoriaen
dc.subjectFree-stream turbulenceen
dc.subjectHeat transferen
dc.subjectSquare cylinderen
dc.subjectFluid flowen
dc.titleEffect of free-stream turbulence on fluid flow and heat transfer from square cylinderen
dc.typePresentationen

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