Percolation study for the capillary ascent of a liquid through a granular soil

  title={Percolation study for the capillary ascent of a liquid through a granular soil},
  author={Manuel C'ardenas-Barrantes and Jos{\'e} D. Mu{\~n}oz and Nuno A. M. Ara{\'u}jo},
  journal={arXiv: Computational Physics},
Capillary rise plays a crucial role in the construction of road embankments in flood zones, where hydrophobic compounds are added to the soil to suppress the rising of water and avoid possible damage of the pavement. Water rises through liquid bridges, menisci and trimers, whose width and connectivity depends on the maximal half-length {\lambda} of the capillary bridges among grains. Low {\lambda} generate a disconnect structure, with small clusters everywhere. On the contrary, for high… 

Figures from this paper



Simulation of Drainage and Imbibition in a Random Packing of Equal Spheres

Abstract The sizes and connections of the pores in a network of tetrahedral pores have been derived using the center coordinates of 3367 randomly close-packed equal spheres. The center coordinates of

Morphological clues to wet granular pile stability.

This work shows that the remarkable insensitivity of the mechanical properties to the liquid content is due to the particular organization of the liquid in the pile into open structures, and presents evidence that this concept is also valid for systems with non-spherical grains.

Capillary forces between two solid spheres linked by a concave liquid bridge: Regions of existence and forces mapping

This article focuses on the capillary interactions arising when two spherical particles are connected by a concave liquid bridge. This scenario is found in many situations where particles are

Grain-scale modeling of arbitrary fluid saturation in random packings.

We propose a model for increasing liquid saturation in a granular packing, which can account for liquid redistribution at saturation levels beyond the well-studied capillary bridge regime. The model

Computer simulation of moist agglomerate collisions

This thesis considers the computer simulation of moist agglomerate collisions using the discrete element method (DEM). The study is confined to pendular state moist agglomerates, at which liquid is

Unified Model of Drainage and Imbibition in 3D Fractionally Wet Porous Media

We develop a grain-based model for capillarity controlled displacement within 3D fractionally wet porous media. The model is based on a novel local calculation of the position of stable fluid–fluid

On the capillary forces in an ideal soil; correction of formulae given by W. B. Haines

1. The omission of the tension in the air-water interface has introduced an erroneous factor into Haines’ formulae; certain additional factors have also crept into his expressions for average stress.

Critical phenomena in fluid invasion of porous media.

A phase diagram for fluid invasion of porous media as a function of pressure P and the contact angle θ of the invading fluid is presented, characterized by a diverging coherence length and the power-law distribution of events typical of self-organized critical phenomena.