Two-phase co-current flow simulations using periodic boundary conditions in horizontal, 4, 10 and 90° inclined eccentric annulus, flow prediction using a modified interFoam solver and comparison with experimental results

Friedemann, Christopher; Mortensen, Mikael; Nossen, Jan

doi:10.1016/j.ijheatfluidflow.2020.108754

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…The transient, two-phase flow solver InterFoam for incompressible, isothermal fluids (Datta et al, 1994;Gharbi & Blunt, 2012;McClure et al, 2022) was used to discretize the numerical solution. The InterFoam solver was used because it is built into the OpenFOAM package, and its ability to simulate two-phase flow displacement problems has been proven in many previous studies (Deshpande et al, 2012;Friedemann et al, 2021). Details of the numerical method and InterFoam solver are discussed in previous work by Nhunduru et al (2022).…”

Section: Water Resources Researchmentioning

confidence: 99%

Relating Pore‐Scale Observations to Continuum‐Scale Models: Impact of Ganglion Dynamics on Flow Transport Kinetics

Nhunduru,

Jahanbakhsh,

Shahrokhi

et al. 2024

Water Resources Research

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Continuum‐scale models used to model and predict two‐phase flow in the subsurface are often based on averaged flow parameters and do not consider pore‐scale fluid flow phenomena, for example, ganglion dynamics and thin‐film flow. As such, a major challenge in upscaling two‐phase flow for groundwater engineering applications is understanding the impact of disconnected flow and ganglion dynamics on continuum‐scale flow functions such as relative permeability‐saturation and capillary pressure‐saturation curves. In this study, we explored how changes in wettability and fluid velocity affect ganglion dynamics. We conducted pore‐scale numerical simulations with OpenFOAM to investigate the displacement of decane by water. Additionally, we examined how displaced phase saturation (a continuum‐scale flow function) responds to changes in dynamic fluid connectivity. We identified three different fluid flow regimes, that is, the connected pathway flow regime, ganglion dynamics (GD) flow regime, and droplet traffic flow regime, and studied the effects of changes in the wettability of the porous medium and the velocity of the invading fluid on the transitions between these different regimes. Our research showed that transitions between connected and disconnected pore‐scale flow regimes, which are induced by changes in fluid velocity and wettability, have a significant impact on both fluid displacement efficiency and average fluid flow transport kinetics.

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