Efficiency in fluid–fluid displacement is drastically reduced by viscous fingering, limiting the overall effectiveness enhanced oil recovery, membrane science, and lateral flow devices used biomedical applications. Local instabilities at interface lead to finger-like patterns when a less fluid displaces an immiscible of higher viscosity. This widely observed phenomenon multiphase inside porous ...

Computational modelling of processes at pore-scale allows to get detailed insight into their nature. It also provides tools to improve coarse-scale models in which porous medium is considered as a permeable continuum. In this paper, we use the simulations at microscale combined with an upscaling procedure and describe the impact of small changes in the pore morphology on the macroscale paramete...

Spreading of a conservative solute in potential flow in a helical porous medium is dominated by the radial velocity distribution within the domain. Higher velocities at the inside of the helix compared to the outside leads to spreading that is balanced by transverse pore-scale dispersion. The angular moments of the concentration distribution exhibit the typical behavior of Taylor-Aris dispersio...

Pore-scale network modeling can predict multiphase flow properties with arbitrary wetting conditions if the network represents the geology of the sample accurately. Such pore-scale modeling uses topologically disordered networks that realistically represent the pore structure. To generate the network it is first necessary to have a three-dimensional voxel-based pore-space representation that is...

We use a new volume-of-fluid based finite-volume method to model two-phase flow through simple pore geometries and study the mechanisms controlling two-phase flow at the pore scale. The numerical model is used to study layer flow and snap-off, and investigate the effect of geometry and flow rate on trapping and mobilization of the disconnected ganglia. Furthermore, a new variable, the capillary...