ISSN Online: 2377-424X
ISBN CD: 1-56700-226-9
ISBN Online: 1-56700-225-0
International Heat Transfer Conference 13
NANOFLUID MIXED CONVECTION IN A CURVED TUBE
摘要
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.