Open AccessNumerical Study of Natural Convection Heat Transfer of Nanofluid in a Square Shaped Porous Media using Lattice Boltzmann Method
Author(s) -
Ahmad Rahmati,
R. Hajzaman,
R. Hajzaman,
دانشگاه کاشان
Publication year - 2017
Publication title -
journal of computational methods in engineering
Language(s) - English
Resource type - Journals
eISSN - 2423-5741
pISSN - 2228-7698
DOI - 10.18869/acadpub.jcme.35.2.47
Subject(s) - nanofluid , lattice boltzmann methods , natural convection , porous medium , heat transfer , materials science , mechanics , square lattice , square (algebra) , thermodynamics , porosity , physics , statistical physics , mathematics , geometry , composite material , ising model
In this study, for the first time natural convection heat transfer of Al2O3-water nanofluid with constant and variable properties is investigated within square shape porous media using the lattice Boltzmann method. The horizontal walls of the cavity are insulated, and left and right vertical walls are hot and cold, respectively. The Study have been carried out for Rayleigh numbers of 103, 104, 105, 106, Darcy numbers of 10-2, 10-4, porosity coefficients of 0.4, 0.6, 0.9 and solid volume fraction of 0, 0.01, 0.02 and 0.03. In order to consider the effect of porous media, Darcy-Forchheimer model is used. The results show that the * ابتاكم لوئسم : :يكينورتكلا تسپ ،ت ar_rahmati@kashanu.ac.ir
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