Thermohydraulics of laminar flow of viscous oil through a circular tube having integral axial rib roughness and fitted with center-cleared twisted-tape

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Title:	Thermohydraulics of laminar flow of viscous oil through a circular tube having integral axial rib roughness and fitted with center-cleared twisted-tape
Authors:	Bhattacharyya, Suvanjan
Keywords:	Mechanical Engineering Laminar forced convection Integral axial rib roughness Twisted tapes Heat transfer enhancement Solar thermal energy
Issue Date:	Sep-2012
Publisher:	Elsevier
Abstract:	The experimental friction factor and Nusselt number data for laminar flow through a circular duct having integral axial rib roughness and fitted with center-cleared twisted-tape have been presented. Predictive friction factor and Nusselt number correlations have also been presented. The thermohydraulic performance has been evaluated. The major findings of this experimental investigation are that with and without center-cleared twisted tapes in combination with integral axial rib roughness perform significantly better than the individual enhancement technique acting alone for laminar flow through a circular duct up to a certain amount of twisted-tape center-clearance.
URI:	https://www.sciencedirect.com/science/article/pii/S0894177712001008 http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/12369
Appears in Collections:	Department of Mechanical engineering

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