RT Journal Article
ID 0835d4935328e1e5
A1 Guiet, Jerome
A1 Reggio, Marcelo
A1 Vasseur, Patrick
T1 NATURAL CONVECTION OF NANOFLUIDS IN HEATED ENCLOSURES USING THE LATTICE BOLTZMANN METHOD
JF Computational Thermal Sciences: An International Journal
JO CTS
YR 2011
FD 2011-09-07
VO 3
IS 4
SP 301
OP 316
K1 cavity
K1 heat exchange
K1 Lattice Boltzmann
K1 nanofluids
K1 natural convection
K1 stream function
K1 vorticity
AB The lattice Boltzmann method applied on two-dimensional Cartesian meshes has been used to investigate the solution of the natural convection of nanofluids in shallow cavities. This kind of flow problem was implemented to solve temperature, vorticity, and stream function equations under the Boussinesq approximation, with a specific treatment for nanoparticles. Validations were first conducted by studying the natural convection of ordinary fluids in square cavities for a range of Rayleigh numbers between 103 and 106 with a Prandtl number of 0.71. The results were compared with data available in the literature. Once satisfactory results were found for this test problem, the lattice Boltzmann formulation was applied to study natural convection involving nanofluids. The influence of nanoparticles on convectional flows in shallow cavities heated from below was simulated for various Rayleigh numbers. This study was conducted with water-based nanofluids for different kinds and various ratios of nanoparticles. Good agreement was found when these results were compared with analytical data given in the literature.
PB Begell House
LK https://www.dl.begellhouse.com/journals/648192910890cd0e,35ab78122798255b,0835d4935328e1e5.html