1. Reference problem

1.1. Geometry

The field studied is a horizontal semi-infinite medium. In practice it measures \(\mathrm{3m}\).

C

D

B

A

Coordinates of the points (\(m\)):

\(A\)	0	0	0	\(C\)	3	0.1
\(B\)	3	0	0	\(D\)	0	0.1

1.2. Material properties

We only give here the properties on which the solution depends, knowing that the command file contains other material data (elasticity modules,…) which ultimately play no role in the solution of the problem at hand.

Liquid water	Density ( \({\mathit{kg.m}}^{\mathrm{-}3}\) ) Viscosity	1000 1
Homogenized parameters	Permeability \(K\) Porosity Sorption isothermal Relative permeability	\(\mathrm{1,625E-5}m\mathrm{/}s\) 0.3
Initial state	Pressure

1.3. Boundary and initial conditions

They are expressed on capillary pressure:

and

We are in Richards” condition: