Formation of bubbly horizon in liquid-saturated porous medium by surface temperature oscillation

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Denis S Goldobin, Pavel V Krauzin

Abstract

We study nonisothermal diffusion transport of a weakly soluble substance in a liquid-saturated porous medium in contact with a reservoir of this substance. The surface temperature of the porous medium half-space oscillates in time, which results in a decaying solubility wave propagating deep into the porous medium. In this system, zones of saturated solution and nondissolved phase coexist with ones of undersaturated solution. The effect is first considered for the case of annual oscillation of the surface temperature of water-saturated ground in contact with the atmosphere. We reveal the phenomenon of formation of a near-surface bubbly horizon due to temperature oscillation. An analytical theory of the phenomenon is developed. Further, the treatment is extended to the case of higher frequency oscillations and the case of weakly soluble solids and liquids.

References

Jun 11, 2004·Nature·Laurent AugustinUNKNOWN EPICA community members
Dec 21, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Denis S Goldobin, Nikolai V Brilliantov
Jun 1, 2014·The European Physical Journal. E, Soft Matter·D S GoldobinJ G Rees

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