Bi-dimensional plume generated by the convective dissolution of an extended source of 
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De, Niloy; Meunier, Patrice; Méheust, Yves; Nadal, François

doi:10.1103/physrevfluids.6.063503

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…The average pore diameter and throat width are λ = 2.3 mm (±0.83 mm) and a = 1.2 mm (±0.14 mm), respectively. The absolute permeability is 3.38 × 10 −2 mm 2 , calculated by 2D numerical simulations of depth‐averaged Stokes flow (De et al., 2021), performed using the computational fluid dynamics software OpenFOAM ® (See Text S2 in Supporting Information ).…”

Section: Methodsmentioning

confidence: 99%

Solute Front Shear and Coalescence Control Concentration Gradient Dynamics in Porous Micromodel

Borgman

Turuban

Baudouin

et al. 2023

Geophysical Research Letters

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Solute transport in porous media plays a central role in a variety of environmental processes. During their transport, solutes experience dispersion and mixing, two coupled but distinct processes (Ginn, 2018;Kitanidis, 1994). Dispersion controls the solute plume's spatial spreading, while mixing reduces the concentration variability within it (Dentz et al., 2011;Le Borgne et al., 2010). Solute mixing controls reaction rates in a range of processes when the typical reaction time is shorter than the typical mixing time (

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Section: Methodsmentioning

confidence: 99%

Solute Front Shear and Coalescence Control Concentration Gradient Dynamics in Porous Micromodel

Borgman

Turuban

Baudouin

et al. 2023

Geophysical Research Letters

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CO2 sequestration in subsurface geological formations: A review of trapping mechanisms and monitoring techniques

Massarweh,

Abushaikha

2024

Earth-Science Reviews

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Enhanced Mixing and Reaction in Converging Flows: Theory and Pore‐Scale Imaging

Izumoto

Heyman

Huisman

et al. 2023

Water Resources Research

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Mixing fronts at the interface of opposing flows are compressed at a constant rate. The resulting exponential stretching of fluid elements leads to enhanced chemical gradients and biogeochemical processes. This process is similar as what occurs in the pore space of 3D chaotic flows. However, it is so far not known how such fluid compression controls the amplitude of mixing and reaction rates in porous media. Here we derive analytical predictions for the mixing width, the maximum reaction rate and the reaction intensity in compressed mixing fronts as a function of the Péclet and Damköhler numbers. We developed an experimental setup providing pore scale measurements of mixing and reaction rates in mixing fronts at the interface of converging flows. The theory accurately predicts the scaling of mixing and reaction with the Péclet number both in porous micromodels and simple Hele‐Shaw cells. Additionally, we found that the presence of pore scale heterogeneities in the porous micromodels enhances reaction rates by a factor of 4 compared to the Hele‐Shaw cells. Using numerical simulations of pore scale velocity fields, we attributed this phenomenon to the enhancement of pore‐scale compression due to the presence of grains in accelerating flows. These findings provide new insights into the dynamics of mixing‐induced reactions in porous media.

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Bi-dimensional plume generated by the convective dissolution of an extended source of CO2

Cited by 3 publications

References 28 publications

Solute Front Shear and Coalescence Control Concentration Gradient Dynamics in Porous Micromodel

Solute Front Shear and Coalescence Control Concentration Gradient Dynamics in Porous Micromodel

CO2 sequestration in subsurface geological formations: A review of trapping mechanisms and monitoring techniques

Enhanced Mixing and Reaction in Converging Flows: Theory and Pore‐Scale Imaging

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