Fluid Invasion in Porous Media: Viscous Gradient Percolation

Details Fluid Invasion in Porous Media: Viscous Gradient Percolation Fluid Invasion in Porous Media: Viscous Gradient Percolation

2004-05-12

arxiv.org/abs/cond-mat/0405242v1

Physics

Condensed Matter

Statistical Mechanics

to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.92.254503

We suggest that the dynamics of stable viscous invasion fronts in porous media depends on the volume capacitance of the media. At high volume capacitance, our network simulations provide numerical evidence of a scaling relation between the front width and its velocity. In the low volume capacitance regime, we derive a new effective scaling supported by network simulations and is in agreement with previous experiments on imbibition in paper and collections of glass beads.

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