WIT Press


Hydrodynamic And Thermal Behaviours Of A Nanofluid In A Uniformly Heated Tube

Price

Free (open access)

Paper DOI

10.2495/HT040421

Volume

46

Pages

10

Published

2004

Size

702 kb

Author(s)

S.E.B. Maïga, C.T. Nguyen, N. Galanis & G. Roy

Abstract

In this study, we have numerically investigated the problem of forced convection flow and heat transfer of nanofluids, namely water-Al2O3 and Ethylene Glycol- Al2O3, flowing inside a uniformly heated tube. By assuming that the mixture behaves as a homogenous single-phase fluid, its apparent thermal properties may then be calculated as function of the corresponding properties of constituents as well as of their respective concentrations. Results have clearly shown the beneficial effects due to the inclusion of nanoparticles. In general, it has been observed that the heat transfer rate considerably increases with an increase of the particle concentration, for both laminar and turbulent flow regimes. Among the nanofluids tested, it

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