1. Discretization#

1.1. Degrees of freedom#

Modeling

Degrees of freedom (at each vertex node)

2D_ FLUI_ABSO

PRES: pressure

PHI: fluid displacement potential

1.2. Support mesh for stiffness matrices#

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

Modeling

Mesh

Interpolation

Remarks

2D_ FLUI_ABSO

SEG2

linear

SEG3

quadratic

1.3. Cargo support mesh#

The same as before.