Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 125, Issue -, Pages 375-386Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2018.04.076
Keywords
Nanofluid; Porous medium; Three dimensional; Lattice Boltzmann method; MHD; Free convection
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Funding
- National Sciences Foundation of China (NSFC) [U1610109]
- Yingcai Project of CUMT [YC2017001]
- PAPD
- UOW Vice-Chancellor's Postdoctoral Research Fellowship
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H2O based nanofluid magnetohydrodynamic free convection in a porous cubic cavity with hot sphere obstacle is investigated by means of Lattice Boltzmann method. Influences of Darcy number (Da), Hartmann number (Ha), and Rayleigh number (Ra) on Al2O3-H2O nanofluid treatment is demonstrated. Thermal conductivity is considered as function of Brownian motion. Results indicate that Lorentz forces makes temperature gradient to decrease. Thermal boundary layer becomes thicker with augment of Hartmann number but opposite treatment is observed for Darcy number. (C) 2018 Elsevier Ltd. All rights reserved.
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