3. Modeling A

3.1. Characteristics of modeling

For the geometry on which the added coefficients are evaluated:

Fluid: 1800 thermal THER_HEXA8 elements 1560 thermal THER_FACE4 interface elements;

Structure: 1200 shell elements QUAD4 modeling “DKT”.

For the system with 1 equivalent degree of freedom: 2 discrete finite elements modeling “DIS_T”.

3.2. Characteristics of the mesh

Mesh 1 (cylinder shells):	1800 mesh HEXA8 1560 mesh QUAD4
Mesh 2 (discrete system):	1 mesh SEG2 1 mesh POI1

3.3. Tested values

Identification	Reference \(\mathrm{\times }{10}^{\mathrm{-}2}\)
frequency to \(0.5m/s\)	1.318
frequency to \(1.5m/s\)	1.112
frequency at \(2m/s\)	0.896
frequency to \(2.2m/s\)	0.772
frequency to \(2.688m\mathrm{/}s\)