Competition between correlated buoyancy and uncorrelated capillary effects during drainage.

@article{Auradou1999CompetitionBC,
  title={Competition between correlated buoyancy and uncorrelated capillary effects during drainage.},
  author={Harold Auradou and Knut J\orgen M{\aa}l\oy and Jean Schmittbuhl and Alex Hansen and Daniel Bideau},
  journal={Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics},
  year={1999},
  volume={60 6 Pt B},
  pages={7224-34}
}
We study drainage in a horizontally oriented rough fracture joint filled with glass beads. The shape and structure of the drained areas is the result of competition between two effects: (1) variations in the capillary thresholds necessary to be overcome in order to drain the pores and (2) the height variations due to the roughness of the fracture joint. These height variations have long range correlations due to the self-affine nature of the fracture. The capillary thresholds are uncorrelated… CONTINUE READING