Lattice Boltzmann Simulation of Nanofluids Natural Convection Heat Transfer in Concentric Annulus
Publish Year: 1392
Type: Journal paper
Language: English
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Document National Code:
JR_IJE-26-8_003
Index date: 7 June 2014
Lattice Boltzmann Simulation of Nanofluids Natural Convection Heat Transfer in Concentric Annulus abstract
This study is applied Lattice Boltzmann Method to investigate the natural convection flow utilizing nanofluids in a concentric annulus. A numerical strategy presents for dealing with curved boundariesof second order accuracy for both velocity and temperature fields. The fluid between the cylinders is awater-based nanofluid containing different types of nanoparticles: copper (Cu), alumina (Al2O3), titanium oxide (TiO2) and silver (Ag). The nanofluid is a two component mixture modeled as a singlephase incompressible fluid with the different thermophysical properties. This investigation comparedwith other experimental and found to be in excellent agreement. Result shows The type of nanofluid is a key factor for heat transfer enhancement. In this study the highest values of percentage of heat transfer enhancement are obtained when using silver nanoparticle
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Lattice Boltzmann Simulation of Nanofluids Natural Convection Heat Transfer in Concentric Annulus authors
h.r ashorynejad
Department of Mechanical Engineering, University of Guilan, Rasht, Islamic Republic of Iran
m Sheikholeslami
Department of Mechanical Engineering, Babol University of Technology, Babol, Islamic Republic of Iran
e Fattahi
Department of Mechanical Engineering, Babol University of Technology, Babol, Islamic Republic of Iran