3. Modeling A#

3.1. Characteristics of modeling#

Modeling A corresponds to the TP statement. It only includes the first thermal calculation (without diagonalization of the thermal mass). The mesh has 3 QUAD4 meshes in the thickness (mesh GIBI).

_images/100000000000031800000264FE85DF7CAB5EE2ED.png

3.2. Characteristics of the mesh#

6 meshes

The useful edges for boundary conditions are defined by the cell groups:

  • \(\mathit{ECHANGE}\) (left edge)

  • \(\mathit{HAUT}\) (top edge)

  • \(\mathit{BAS}\) (bottom edge)

3.3. Tested sizes and results#

Temperature

instant

Identification

Reference

Aster

% difference

maximum

4

Temp max

126.314

126.314

0

Note:

This modeling only includes a non-regression test. It is the starting point of the TP, intended to improve modeling (cf modeling B) . On the evolution of the temperature in the middle of the cylinder as a function of time, and the temperature distribution at \(t\mathrm{=}\mathrm{4s}\). We note (see red curves, with square marker in the following figure) that we exceed the temperature of \(100°C\) , which is not a physical step. This characterizes a lack of respect for the principle of maximum.