Mixed boundary condition for flow on 2D boundary
Q (flow) 2D MIxed Limit Condition
The element imposes a fluid flow along the parabolic boundary of an element. This line is defined by 2 or 3 nodes.
The imposed flow is defined by law QMLC. The retention curve allowing the distribution of the total flow between a water flow and a gas flow depending on the saturation is also given by this law. The total flow is multiplied either by FMULT or by DMULT.
Type: 116
Implemented by: J-P. Radu, 2000
Prepro: Q2MLCA.F
Lagamine: Q2MLCB.F
| Title (A5) | |
|---|---|
| TITLE | “Q2MLC” in the first 5 columns |
| Control data (I5) | |
| NELEM | Number of elements |
| Definition of the elements (2I5/3I5) | |
| NINTE | Number of integration points (2 or 3) |
| LMATE | Material law |
| NODES(3) | List of nodes |
Sigma(1): Water flow = imposed flow * $S_{rw}$
Sigma(2): Gas flow = imposed flow * $(1-S_{rw})$
Q(1): Saturation $S_{rw}$