Open AccessNanofluid Raleigh-Benard convection in rectangular cavity: simulation with lattice Boltzmann method
Author(s) -
Yali Guo,
Hehan Xu,
Shengqiang Shen,
Wei Lan
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.144704
Subject(s) - nanofluid , lattice boltzmann methods , heat transfer , materials science , mechanics , convection , volume fraction , thermodynamics , convective heat transfer , natural convection , physics
The lattice Boltzmann method is used to simulate the thermal field and flow field of nanofluid Raleigh-Benard convection in a rectangular cavity. The heat transfer characteristics of nanofluid are compared under different Raleigh numbers, volume fractions of nanoparticles and particle sizes. The results show that under the same Raleigh number and volume fraction, the convection heat transfer of nanofluid becomes weakened by increasing the particle size. Under the same Raleigh number and particle size, the convection heat transfer of nanofluid becomes strengthened by increasing the volume fraction of nanoparticles.