Open Access Nano Express

Simulation of forced convection in a channel with nanofluid by the lattice Boltzmann method

Nor Azwadi Che Sidik*, Maysam Khakbaz, Leila Jahanshaloo, Syahrullail Samion and Amer Nordin Darus

Author affiliations

Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, UTM Skudai, Johor, 81310, Malaysia

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Citation and License

Nanoscale Research Letters 2013, 8:178  doi:10.1186/1556-276X-8-178

Published: 17 April 2013

Abstract

This paper presents a numerical study of the thermal performance of fins mounted on the bottom wall of a horizontal channel and cooled with either pure water or an Al2O3-water nanofluid. The bottom wall of the channel is heated at a constant temperature and cooled by mixed convection of laminar flow at a relatively low temperature. The results of the numerical simulation indicate that the heat transfer rate of fins is significantly affected by the Reynolds number (Re) and the thermal conductivity of the fins. The influence of the solid volume fraction on the increase of heat transfer is more noticeable at higher values of the Re.

Keywords:
Nanofluid; Volume fraction; Nusselt number; Reynolds number; Lattice Boltzmann method