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Fluid Dynamics
Erschienen in: Fluid Dynamics 2/2020

01.03.2020

Instability of a Light Fluid over a Heavy One under the Motion of Their Interface in a Porous Medium

verfasst von: G. G. Tsypkin

Erschienen in: Fluid Dynamics | Ausgabe 2/2020

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Abstract—

The stability of the moving interface between a gas and a liquid in a porous medium is considered. The gas region is assumed to be located above the region saturated with liquid. The applications of the problem to the underground water flow through a porous medium and the motion of oil in an oil field with gas cap are considered. It is shown that the interface becomes unstable when underground water moves in the nonwettable medium and in the medium with a capillary pressure gradient, as well as in oil field operation when the reservoir pressure becomes lower than the gas-cap pressure. In the presence of the dissolved admixture such an instability can lead to soil salinization, while in oil field operation the instability can lead to formation of residual oil.
Vorheriger Artikel Critical Evolution of Finite Perturbations of a Water Evaporation Surface in Porous Media
Nächster Artikel Methods of Controlling Flows under the Strong Hypersonic Interaction Conditions

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Metadaten
Titel
Instability of a Light Fluid over a Heavy One under the Motion of Their Interface in a Porous Medium
verfasst von
G. G. Tsypkin
Publikationsdatum
01.03.2020
Verlag
Pleiades Publishing
Erschienen in
Fluid Dynamics / Ausgabe 2/2020
Print ISSN: 0015-4628
Elektronische ISSN: 1573-8507
DOI
https://doi.org/10.1134/S0015462820020135

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