355 citations · 2.6k across the 109 of their papers we have counts for
116 papers
Burst dynamics, up-scaling and dissipation of slow drainage in porous media
Knut Jørgen Måløy, Marcel Moura, Alex Hansen +2
We present a theoretical and experimental investigation of drainage in porous media. The study is limited to stabilized fluid fronts at moderate injection rates, but it takes into…
The Co-Moving Velocity in Immiscible Two-Phase Flow in Porous Media
Subhadeep Roy, Håkon Pedersen, Santanu Sinha +1
We present a continuum (i.e., an effective) description of immiscible two-phase flow in porous media characterized by two fields, the pressure and the saturation. Gradients in thes…
Non-Newtonian rheology in a capillary tube with varying radius
Federico Lanza, Alex Hansen, Alberto Rosso +1
The flow through a capillary tube with non-constant radius and where bubbles of yield stress fluid are injected is strongly non-linear. In particular below a finite yield pressure…
Role of pore-size distribution on effective rheology of two-phase flow in porous media
Subhadeep Roy, Santanu Sinha, Alex Hansen
The flow of immiscible fluids inside a porous medium shows non-linearity in the form of a power law in the rheological properties of the fluids under steady state flow conditions.…
Rheology of immiscible two-phase flow in mixed wet porous media: Dynamic pore network model and capillary fiber bundle model results
Hursanay Fyhn, Santanu Sinha, Subhadeep Roy +1
Immiscible two-phase flow in porous media with mixed wet conditions was examined using a capillary fiber bundle model, which is analytically solvable, and a dynamic pore network mo…
Hyperballistic superdiffusion and explosive solutions to the non-linear diffusion equation
Eirik G. Flekkøy, Alex Hansen, Beatrice Baldelli
By means of a particle model that includes interactions only via the local particle concentration, we show that hyperballistic diffusion may result. This is done by findng the exac…