Micro‐continuum modeling: An hybrid‐scale approach for solving coupled processes in porous media

C Soulaine - Water Resources Research, 2024 - Wiley Online Library
Micro‐continuum models are versatile and powerful approaches for simulating coupled
processes in two‐scale porous systems. Initially oriented for modeling static single‐phase …

[HTML][HTML] Complementary classifications of aeolian dunes based on morphology, dynamics, and fluid mechanics

SC Du Pont, DM Rubin, C Narteau, MGA Lapôtre… - Earth-Science …, 2024 - Elsevier
Dunes form where winds blow over a bed of mobile sediment grains–conditions that are
common in our solar system. On Earth, dunes abound in arid continental interiors and along …

Dissolution hotspots in fractures

R Hu, T Wang, Z Yang, Y Xiao… - Geophysical …, 2021 - Wiley Online Library
The injection of reactive fluid into fractured reservoirs is relevant to many subsurface
processes. During injection, fracture dissolution forms various patterns. Despite its …

On the role of gravity in dissolving horizontal fractures

R Hu, K Li, CX Zhou, T Wang, Z Yang… - Journal of Geophysical …, 2023 - Wiley Online Library
Fractures are ubiquitous in geological systems. As reactive fluid flow through a fracture,
dissolution of the fracture walls may occur, thus altering the fracture aperture and increasing …

Dissolution regimes of a horizontal channel in a gravity field

W Guo, R Hu, CX Zhou, Z Yang, YF Chen - Physical Review Fluids, 2023 - APS
Buoyancy-driven dissolution of the solid phase is common in natural processes and
subsurface applications, such as geomorphology, solution mining, and geological CO 2 …

Dissolution-driven propulsion of floating solids

M Chaigne, M Berhanu… - Proceedings of the …, 2023 - National Acad Sciences
We show that unconstrained asymmetric dissolving solids floating in a fluid can move
rectilinearly as a result of attached density currents which occur along their inclined …

Topography generation by melting and freezing in a turbulent shear flow

LA Couston, E Hester, B Favier, JR Taylor… - Journal of Fluid …, 2021 - cambridge.org
We report an idealized numerical study of a melting and freezing solid adjacent to a
turbulent, buoyancy-affected shear flow, in order to improve our understanding of …

Streamwise dissolution patterns created by a flowing water film

A Guérin, J Derr, S Courrech du Pont, M Berhanu - Physical Review Letters, 2020 - APS
The dissolution of rocks by rainfall commonly generates streamwise parallel channels, yet
the occurrence of these natural patterns remains to be understood. Here, we report the …

Solutal convection instability caused by dissolution

M Berhanu, J Philippi, S Courrech du Pont, J Derr - Physics of Fluids, 2021 - pubs.aip.org
When a soluble solid body is suddenly put in contact with water, a convection flow can be
generated. Once the fluid layer charged into solute is sufficiently dense, this layer becomes …

Reactive-infiltration instability in a Hele-Shaw cell influenced by initial aperture and flow rate

T Wang, R Hu, Z Yang, YF Chen, Y Li, CB Zhou - Physical Review Fluids, 2023 - APS
Reactive-infiltration instability is an inherent nature of a solid dissolution process in a rock
fracture. This instability expands the aperture (spacing) of the fracture inhomogeneously and …