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Title: The Origin of hysteresis and memory of two-phase flow in disordered media
Author: Holtzman, Ran
Dentz, Marco
Planet Latorre, Ramon
Ortín, Jordi, 1959-
Keywords: Histèresi
Model d'Ising
Ising model
Issue Date: 4-Dec-2020
Publisher: Springer Nature
Abstract: Cyclic fluid-fluid displacements in disordered media feature hysteresis, multivaluedness, and memory properties in the pressure-saturation relationship. Quantitative understanding of the underlying pore-scale mechanisms and their extrapolation across scales constitutes a major challenge. Here we find that the capillary action of a single constriction in the fluid passage contains the key features of hysteresis. This insight forms the building block for an ab initio model that provides the quantitative link between the microscopic capillary physics, spatially-extended collective events (Haines jumps) and large-scale hysteresis. The mechanisms identified here apply to a broad range of problems in hydrology, geophysics and engineering.
Note: Reproducció del document publicat a:
It is part of: Communications Physics, 2020, vol. 3, num. 222, p. 1-7
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ISSN: 2399-3650
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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