Complex fluid flow in porous media is ubiquitous in many natural and industrial processes.
Direct visualization of the fluid structure and flow dynamics is critical for understanding and …

Dynamics of flowing air in partially water‐saturated, porous geological formations are
governed by a wide range of forces and parameters. These dynamics are reviewed in the …

Evaporation from porous media involves mass and energy transport including phase
change, vapor diffusion, and liquid flow, resulting in complex displacement patterns affecting …

We study experimentally how wettability impacts fluid-fluid-displacement patterns in granular
media. We inject a low-viscosity fluid (air) into a thin bed of glass beads initially saturated …

The flow of two immiscible fluids through a porous medium depends on the complex
interplay between gravity, capillarity, and viscous forces. The interaction between these …

The simulation of unstable invasion patterns in porous media flow is very challenging
because small perturbations are amplified, so that slight differences in geometry or initial …

Early stages of evaporation from porous media are marked by relatively high evaporation
rates supplied by capillary liquid flow from a receding drying front to vaporization surface. At …

Evaporative drying of porous media is jointly controlled by external (atmospheric) conditions
and by media internal transport properties. Effects of different atmospheric potential …

Pattern-forming processes in simple fluids and suspensions have been studied extensively,
and the basic displacement structures, similar to viscous fingers and fractals in capillary …

We have studied experimentally and numerically the displacement of a highly viscous
wetting fluid by a non-wetting fluid with low viscosity in a random two-dimensional porous …