Author:
Akamatsu Masato, ,Suzuki Kanji,
Abstract
Transient two-dimensional numerical computations are carried out to clarify the laminar flow forced convective heat transfer characteristics of water-Al2O3 nanofluids in a horizontal circular tube with a constant heat flux boundary condition. The numerical results are presented over a wide range of diameters, volume fractions of Al2O3 nanoparticles, and Prandtl numbers. The ratio of average Nusselt numbers of water-Al2O3 nanofluids to that of water decreased with the increase of the volume fraction for three different diameters and Prandtl numbers. When the volume fraction is the same, the ratio of the average Nusselt numbers decreased as the diameter and Prandtl number decreases.
Publisher
International Information Institute
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