Modeling of Rayleigh–Bénard natural convection heat transfer in nanofluids

Abstract

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Double diffusive convection and thermodiffusion of fullerene–toluene nanofluid in a porous cavity

“…This is because the buoyancy term decreases with increase in the volume fraction of the particle. Similar findings were obtained by Elhajjar et al in their study about natural convection and heat transfer in nanofluids. Their results showed that adding nanoparticles delays the occurrence of convection.…”

Effect of thermophoresis on natural convection in a Rayleigh–Benard cell filled with a nanofluid

“…This work is focused on natural convection in an enclosure or cavity. There are numerous studies in natural convection in enclosures using [8], and Hwang et al [9] concluded that with a positive Soret coefficient (particles forced by the temperature gradient to move to the cold side), the stability of the flow increases in the Rayleigh-Benard configuration, whereas Kim et al [10] and Tzou [11] conclude the opposite. Experimental results of Wen and Ding [12] on water/titania nanofluid in a Rayleigh-Benard cell indicate a reduction in heat transfer coefficient with addition of nanoparticles, perhaps due to particle agglomeration observed in their cell.…”

Tunable heat transfer with smart nanofluids

“…By adding a small amount of nanoparticles to water the bifurcation scenario changes dramatically [26][27][28][29][30][31][32][33][34][35][36][37][38]. The the bottom of the sample can be written as the superposition of the two terms: ρ = ρ T + ρ c .…”