Lattice Boltzmann simulation of Rayleigh-Benard convection in enclosures filled with Al2O3-water nanofluid
Keyword(s):
In order to clarify the controversies for the role of nanoparticles on heat transfer in natural convection, lattice Boltzmann method is used to investigate Rayleigh-Benard convection heat transfer in differentially-heated enclosures filled with Al2O3-water nanofluids. The results for streamline and isotherm contours, vertical velocity, and temperature profiles as well as the local and average Nusselt number are discussed for a wide range of Rayleigh numbers and nanoparticle volume fractions (0 ? ? ? 5%). The results show that with the increase of Rayleigh number and nanoparticles loading, Nuave increases. It is suggested that the addition of nanoparticles can enhance the heat transfer in Rayleigh-Benard convection.
2006 ◽
Vol 212
(2)
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pp. 473-489
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2007 ◽
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(17-18)
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pp. 3315-3328
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Rayleigh-Bénard convection via Lattice Boltzmann method: code validation and grid resolution effects
2011 ◽
Vol 333
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pp. 012011
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2020 ◽
Vol 45
(11)
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pp. 9527-9547
2011 ◽
Vol 32
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pp. 65-77
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