Discretization
==============


Degrees of freedom
-----------------


.. csv-table::

    "**Modeling**", "**Degrees of freedom (at each vertex node)**"



.. csv-table::

    "2D_ FLUI_ABSO "," PRES: pressure"
    "", "PHI: fluid displacement potential"



Support mesh for stiffness matrices
------------------------

The support meshes of the finite elements are segments. The elements are iso-parametric.


.. csv-table::

    "**Modeling**", "**Mesh**", "**Interpolation**", "**Remarks**"



.. csv-table::

    "2D_ FLUI_ABSO "," SEG2 ", "linear", ""
    "", "SEG3 ", "quadratic", ""



Cargo support mesh
------------------------------

The same as before.