9. 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).
9.1. 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 \(1.0E-18\), and the tests are carried out at the time step 8 \((10000)\) so as to exceed the transitory regime.
9.2. Characteristics of the mesh#
9.3. The cube is composed of a HEXA20.#
9.4. 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.
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 |