u3.13.13 2D Modeling_ FLUI_ABSO

Summary:

This document describes for 2D_ FLUI_ABSO modeling:

• the degrees of freedom carried by the finite elements that support modeling,

• the related support meshes,

• the loads supported,

• non-linear possibilities,

• test cases implementing modeling.

2D_ FLUI_ABSO modeling (Phenomenon: mechanical) corresponds to finite elements whose support cells are linear. They make it possible to take into account the absorbent border condition of sections of fluid volumes, in plane motion.

• 1. Discretization
  • 1.1. Degrees of freedom
  • 1.2. Support mesh for stiffness matrices
  • 1.3. Cargo support mesh
• 2. Supported loads
• 3. Nonlinear possibilities
• 4. Example of implementation: test case