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

Ranjan, P.; Dewan, A.; Kumar, S.

dc.contributor.author	Ranjan, P.	en
dc.contributor.author	Dewan, A.	en
dc.contributor.author	Kumar, S.	en
dc.date.accessioned	2017-09-19T12:48:35Z
dc.date.available	2017-09-19T12:48:35Z
dc.date.issued	2017	en
dc.description	Papers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .	en
dc.description.abstract	Simulations 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.sponsorship	International centre for heat and mass transfer.	en
dc.description.sponsorship	American society of thermal and fluids engineers.	en
dc.format.extent	7 pages	en
dc.format.medium	PDF	en
dc.identifier.uri	http://hdl.handle.net/2263/62390
dc.language.iso	en	en
dc.publisher	HEFAT	en
dc.rights	University of Pretoria	en
dc.subject	Free-stream turbulence	en
dc.subject	Heat transfer	en
dc.subject	Square cylinder	en
dc.subject	Fluid flow	en
dc.title	Effect of free-stream turbulence on fluid flow and heat transfer from square cylinder	en
dc.type	Presentation	en