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of 61
pro vyhledávání: '"Meheust, Yves"'
Recent studies have revealed the central role of chaotic stretching and folding at the pore scale in controlling mixing within porous media, whether the solid phase is discrete (as in granular and packed media) or continuous (as in vascular networks
Externí odkaz:
http://arxiv.org/abs/2412.05429
The immiscible displacement of a fluid by another one inside a porous medium produces different types of patterns depending on the capillary number Ca and viscosity ratio M. At high Ca, viscous fingers resulting from the viscous instability between f
Externí odkaz:
http://arxiv.org/abs/2312.14799
Geological storage of CO$_2$ in deep saline aquifers is a promising measure to mitigate global warming by reducing the concentration of this greenhouse gas in the atmosphere. When CO$_2$ is injected in the geological formation, it dissolves partially
Externí odkaz:
http://arxiv.org/abs/2110.03962
Convective dissolution is the process by which CO$_2$ injected in deep geological formations dissolves into the aqueous phase, which allows storing it perennially by gravity. The process results from buoyancy-coupled Darcy flow and solute transport.
Externí odkaz:
http://arxiv.org/abs/2110.03803
Autor:
Velásquez-Parra, Andrés, Aquino, Tomás, Willmann, Matthias, Méheust, Yves, Borgne, Tanguy Le, Jiménez-Martínez, Joaquín
The simultaneous presence of liquid and gas in porous media increases flow heterogeneity compared to saturated flows. However, so far the impact of saturation on flow statistics and transport dynamics remained unclear. Here, we develop a theoretical
Externí odkaz:
http://arxiv.org/abs/2103.08016
Bundle-of-tubes model was previously used to understand the flow behaviour in a porous medium. The interacting nature of the pores within a porous medium can be well depicted by an interacting capillary model. However, the arrangement of pores is cru
Externí odkaz:
http://arxiv.org/abs/2012.11335
Akademický článek
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Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2020 Jun . 117(24), 13359-13365.
Externí odkaz:
https://www.jstor.org/stable/26968483
A numerical method to efficiently solve for mixing and reaction of scalars in a two-dimensional flow field at large P\'eclet numbers but otherwise arbitrary Damk\"ohler numbers is reported. We consider a strip of one reactant in a pool of another rea
Externí odkaz:
http://arxiv.org/abs/1605.08696
Mixing fronts, where fluids of different chemical compositions mix with each other, are typically subjected to velocity gradients, ranging from the pore scale to the catchment scale due to permeability variations and flow line geometries. A common tr
Externí odkaz:
http://arxiv.org/abs/1604.08092