Pore network simulations of thin porous medium characterization by evapoporometry

•The evapoporometry (EP) technique is studied from pore network simulations•The characterization of pore size distribution via EP is analyzed•The technique requires a very accurate determination of evaporation rate.•EP and liquid-liquid displacement porometry techniques are discussed comparatively....

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Bibliographic Details
Published in:International journal of multiphase flow 2023-10, Vol.167, p.104547, Article 104547
Main Authors: Maalal, Otman, Prat, Marc, Lasseux, Didier
Format: Article
Language:English
Subjects:
Computational Physics
Engineering Sciences
Fluids mechanics
Mechanics
Numerical simulation
Physics
Pore body size distribution
Pore network model
Pore throat size distribution
Porous medium characterization
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Summary:•The evapoporometry (EP) technique is studied from pore network simulations•The characterization of pore size distribution via EP is analyzed•The technique requires a very accurate determination of evaporation rate.•EP and liquid-liquid displacement porometry techniques are discussed comparatively. Evapoporometry is a technique aiming at characterizing the pore size distribution of a porous medium from evaporated mass measurements. In this work, evapoporometry is studied from numerical simulations on model pore networks allowing a detailed analysis of the underlying physics at play in the technique. Simulations indicate that both the pore body size and throat size distributions can be characterized and pinpoint the need of a very accurate determination of the evaporation rate. This is notably illustrated by varying the evaporated mass acquisition time step. Evapoporometry and liquid-liquid displacement porometry techniques are discussed comparatively in relation with experimental works reporting differences between the pore size distributions identified through both techniques. [Display omitted]
ISSN:0301-9322
1879-3533
DOI:10.1016/j.ijmultiphaseflow.2023.104547