G modeling
==============

With G and H models, we are undertaking to validate mesh PYRAM13pour the HM models. We compare the behavior of a HEXA20 (G modeling) with 6 PYRAM13 (H modeling).


Characteristics of modeling
-----------------------------------


* Modeling in 3D_HM plane deformations.


* Hydraulic behavior LIQU_SATU.

Since the transient regime for establishing the flow is very sensitive to the structure, the inverse of the compressibility of the fluid is reduced, which changes to :math:`1.0E-18`, and the tests are carried out at the time step 8 :math:`(10000)` so as to exceed the transitory regime.


Characteristics of the mesh
---------------------------


The cube is composed of a HEXA20.
--------------------------------


Tested sizes and results
------------------------------

The minimum and maximum values of the pore pressure on the lower face and the upper face of the cube are tested with respect to the analytical solution.


.. csv-table::

    "Quantities tested", "Reference type", "Reference value", "Tolerance"
    "PRE1 (top side) MIN ", "'ANALYTIQUE'", "''", "1.250124996E+16", "0.05"
    "PRE1 (top side) MAX ", "'ANALYTIQUE'", "''", "1.250124996E+16", "0.05"
    "PRE1 (bottom side) MIN ", "'ANALYTIQUE'", "''", "1.249875004E+16", "0.05"
    "PRE1 (bottom side) MAX ", "'ANALYTIQUE'", "''", "1.249875004E+16", "0.05"