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Title: Multiphase CFD modeling of front propagation in a Hele-Shaw cell featuring a localized constriction
Author: Mac Intyre, Jonatan R.
Puisto, Antti
Korhonen, Marko
Alava, Mikko J.
Ortín, Jordi, 1959-
Keywords: Dinàmica de fluids
Fluids complexos
Equacions de Navier-Stokes
Fluid dynamics
Complex fluids
Navier-Stokes equations
Issue Date: 17-Aug-2021
Publisher: American Physical Society
Abstract: We study a liquid-gas front propagation in a modulated Hele-Shaw cell by means of multiphase computational fluid mechanics based on the three-dimensional Navier-Stokes equations. In the simulations an obstacle that partially fills the gap is placed at the center of the cell, and the liquid-gas interface is driven at a constant velocity. We study the morphological differences between imbibition and drainage for a wide range of capillary numbers, and explore how the wetting properties of the constriction affect the amount of liquid that remains trapped in the draining process. We observe increasing remaining volumes with increasing capillary number and decreasing contact angle. The present CFD implementation for a single mesa defect provides insight into a wide number of practical applications.
Note: Reproducció del document publicat a:
It is part of: Physical Review Fluids, 2021, vol. 6, num. 8, p. 1-14
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ISSN: 2469-990X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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