====== FMIVP ======
Mixed boundary condition for seepage + evaporation on 2D boundary

===== Description =====
**F**luid **MI**xed limit condition **V**apour **P**ressure \\
The element consists of 1, 2, or 3 "real" nodes and 1 node representing the environment. It is used for modelling a mixed type of boundary condition. 
{{:elements:conra.png?600|}}
\\
The element can only be used with law [[laws:fmivp|FMIVP]]. \\
Type: 118 \\

==== Files ====
Prepro: FMIVPA.F \\
Lagamine: FMIVPB.F

===== Input file =====
^Title (A5)^^
|TITLE|"FMIVP" in the first 5 columns|
^Control data (2I5)^^
|NELEM|Number of elements|
|NNODE|Number of nodes (environment node included)|
^Definition of the elements (2I5/4I5)^^
|NINTE|Number of integration points: \\ For NNODE > 2 → 2 or 3 \\ For NNODE = 2 → 1|
|LMATE|Material law|
|NODES|List of nodes (4, 3, or 2)| 

===== Results =====
Sigma(1): Output or input flow at the boundary.