Simulation of buoyancy driven non wetting bubbles (red) percolating in a porous media filled with a second denser and wetting fluid (in blue). The two fluid have the same viscosity. The porosity of the media is 0.8. This simulation has been obtained by Andrea Parmigiani using the standard multi-component Shan-Chen model.

Animations: AVI file / animated GIF

2D percolation through a porous media