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Journal of Applied Mechanics and Technical Physics

2021 year, number 4

Influence of a Water Density Maximum on the Cooling of a Water-Saturated Porous Medium

O. A. Simonov1, L. N. Filimonova2,3
1Tyumen Research Center, Siberian Branch, Russian Academy of Sciences, Tyumen, Russia
2Tyumen Department of the Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Tyumen, Russia
3Tyumen State University, Tyumen, Russia
Keywords: porous medium, free convection, water density maximum


A numerical study of the cooling of a water-saturated porous medium in a cylindrical heat-insulated vessel with a vertical cooling element is performed. The effect of convective heat transfer on the cooling a porous medium saturated with water is carried out, taking into account the density inversion at various values of the porous medium permeability. It is shown that the effect of a maximum water density during the convective motion of water in porous media in the vicinity of zero temperature should be taken into account. The presence of a maximum water density in highly permeable soils restructures the flow and reduces the convective transfer rate, which slows down the cooling of the system.