.. _V4.25.100:

**v4.25.100** TTLV100 - Thermal shock in a pipe with exchange condition
==============================================================================

**Summary:**

This transient linear thermal test consists in imposing a cold thermal shock on a hollow cylinder that is assumed to be infinite using an exchange limit condition.

The shock is modelled by a linear ramp :math:`\Delta T=–269°C` in :math:`12s`.

The problem is treated axisymmetrically and in 3D.

The reference solution is obtained on a fine mesh.

The test is carried out on 3 models: (TRIA3, QUAD4), (,), (TRIA6, QUAD9), (,) in AXIS_DIAG and (HEXA8, PENTA6) in 3D_ DIAG.

We test the transient linear thermal algorithm when the mass matrix is diagonalized (modeling AXIS_DIAG and 3D_ DIAG with "" *mass lumping*").


.. toctree::
    :hidden:

    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Mod_lisation_C
    Synth_se_des_r_sultats