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Title: Capillary jumps of fluid-fluid fronts across an elementary constriction in a model open fracture
Author: Planet Latorre, Ramon
Díaz Piola, Lautaro
Ortín, Jordi, 1959-
Keywords: Dinàmica de fluids
Anàlisi numèrica
Fluid dynamics
Numerical analysis
Issue Date: 8-Apr-2020
Publisher: American Physical Society
Abstract: We study experimentally the quasistatic displacement of an oil-air front across a localized constriction in a model open fracture. The front experiences capillary jumps at one end of the constriction in both imbibition and drainage, leading to a microscale pressure-saturation hysteresis cycle. At the other end the front is reversibly pinned. A condition of local mechanical equilibrium between the restoring elasticity of the front and the distortion produced by the local change in aperture captures all we measure quantitatively, in terms of material and geometrical properties only.
Note: Reproducció del document publicat a:
It is part of: Physical Review Fluids, 2020, vol. 5, p. 044002-1-044002-10
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ISSN: 2469-990X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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