Abstract
The existence of capillary-gravitational equilibrium is detected in the problem of the penetration of a nonwetting fluid into a porous medium from the top. Using a numerical simulation method, three qualitatively feasible regimes of operation of the system are distinguished: total penetration of the soil; penetration to a finite depth, i.e., starting from a certain moment of time the gravitational head is weaker than the capillary resistance of the medium; no penetration of the soil. The existence of these three regimes makes it possible to distinguish critical parameters of the process expressed in terms of the Bond number.
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References
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Additional information
Moscow. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 2, pp. 95–103, March–April, 1998.
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Panfilova, I.V. Gravitional penetration of a nonwetting fluid into a porous medium. Classification of regimes. Fluid Dyn 33, 230–237 (1998). https://doi.org/10.1007/BF02698707
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DOI: https://doi.org/10.1007/BF02698707