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International Heat Transfer Conference 13
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

NANOFLUID MIXED CONVECTION IN A CURVED TUBE

page 12
DOI: 10.1615/IHTC13.p8.80
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SINOPSIS

Developed laminar mixed convection of a nanofluid consists of water and Al2O3 in a horizontal curved tube has been studied numerically. Three-dimensional elliptic governing equations have been used. Homogeneous approach has been used; therefore effective physical properties corresponding to the nanoparticles concentrations have been considered. Simultaneous effects of the buoyancy force, centrifugal force and nanoparticles concentration at different axial positions have been presented and discussed. The nanoparticles volume fraction does not have a significant effect on the secondary flow, axial velocity and the skin friction coefficient. For a given Reynold number buoyancy force has a negative effect on the Nusselt number while the nanoparticles concentration has a positive effect.

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