Effect of gravity settling on the onset of thermal convection in a nanofluid-saturated porous medium layer
An-Cheng Ruo,
Min-Hsing Chang
Abstract:The onset of convection in a horizontal porous medium layer saturated with a nanofluid and heated from below is investigated via linear stability analysis and numerical simulation. The Darcy–Buongiorno model is used to describe the convective transport behaviour of the nanofluid and the settling effect of nanoparticles due to gravity is considered in addition to thermophoresis and Brownian diffusion. The linear stability analysis shows that the gravity settling is a substantial stabilizing mechanism restrainin… Show more
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