13. K modeling#
Fluid behavior: THMC = LIQU_SATU
13.1. Characteristics of J modeling#
Volume modeling with second gradient
1 mesh HEXA20 from 3D modelling_ THMS_DIL: THM_HEXA20S_DIL
This is the same modeling as \(J\) but with a second gradient. The results will therefore be significantly different from the reference case. This is therefore a case of non-regression.
13.2. Tested sizes and results#
Since this test is a non-regression test, we are satisfied with a simple validation over 2 moments.
Discretization in time: Several time steps (16) to study the evolution of pressure during the transition phase until it stabilizes. The time pattern is implicit \((\vartheta =1)\).
List of calculation times in seconds: \({5.10}^{3},{10}^{10}\)
Node |
Order Number |
Press |
Reference |
|
\((\mathit{Pa})\) « |
Tolerance \((\text{\%})\) |
|||
\(\mathit{NO20}\) |
8 (t=5.10 3s) |
\(\mathit{PRE1}\) |
65 |
1.0 |
16 (t=1010s) |
\(\mathit{PRE1}\) |
5.10+3 |
1.0 |
|
\(\mathit{NO1}\) |
8 (t=5.103s) |
\(\mathit{PRE1}\) |
|
1.0 |
16 (t=1010s) |
\(\mathit{PRE1}\) |
|
1.0 |
This test also serves to validate the OBSERVATION keyword, on the HEXA20 mesh:
Observation |
CHAMP |
|
|
|
|
1 |
|
|
|
MIN |
|
2 |
|
|
|
|
|
3 |
|
|
|
|
|
3 |
|
|
|
|
With the following results (NON_REGRESSION):
Observation |
Order Number |
Reference |
|
\((\mathrm{Pa})\) « |
Tolerance \((\text{\%})\) |
||
1 |
16 (t=10 10s) |
2886.7983561532 |
1.00E-006 |
2 |
16 (t=1010s) |
-4999.9526983562 |
1.00E-006 |
3 |
16 (t=1010s) |
-9.74094E-18 |
1.00E-012 (absolute) |
4 |
16 (t=1010s) |
-6.21766E-17 |
1.00E-012 (absolute) |
5 - MINI_ABS |
16 (t=10 10s) |
4999.9526983751 |
1.00E-006 |
6 - MAXI_ABS |
16 (t=10 10s) |
5000.0469320954 |
1.00E-006 |