3. Modeling A

3.1. Characteristics of modeling

Modeling includes:

• structural side:

2	discrete elements of type K_ TR_L	(SEG2 mesh)
1316	shell elements type DKT	(TRIA3 mesh)

• fluid side:

1316	3D thermal face elements	(mesh TRIA3)
14454	3D thermal volume elements	(mesh TETRA4)

The nodes of the inner shell are blocked according to all their degrees of freedom of rotation, as well as their two degrees of freedom of translation DX and DY (GROUP_NO: NOINT).

The springs are embedded in the massif at points \(\mathrm{P1}\) and \(\mathrm{P2}\) (GROUP_NO: ENCAST).

The shells are \(\mathrm{1 }\mathrm{mm}\) thick.

3.2. Characteristics of the mesh

Number of meshes and types: 2632 TRIA3, 2 SEG2, 14454 TETRA4.

3.3. Tested values

Identification	Reference
Clean mode order: 1	3.8534