v4.21.100 TTLL100 - Thermal shock on a flat wall with exchange condition

Summary:

This transient linear thermal test consists in imposing a cold thermal shock on an infinite plane wall using an exchange limit condition. The shock is modelled by a linear ramp \(\Delta T\mathrm{=}–100°C\) in \({10}^{\mathrm{-}2}s\).

The problem is dealt with in plan.

The reference solution is analytical.

The test is carried out on 2 models: (TRIA3, QUAD4) and (TRIA6, QUAD9).

We test the transient linear thermal algorithm when the mass matrix is diagonalized (modeling PLAN_DIAG with « mass lumping »).

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested values
• 4. B modeling
  • 4.1. Characteristics of modeling
  • 4.2. Characteristics of the mesh
  • 4.3. Tested values
• 5. Summary of results