.. _V2.03.103:

**v2.03.103** SDLS103 - Coaxial shells under annular flow: inertial coupling between modes
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**Summary**

We consider a hardware configuration consisting of two coaxial cylindrical shells, interacting with a fluid flowing in the annular space separating the shells.

The aim of the test case is to validate the fluid-structure coupling model developed in operator CALC_FLUI_STRU for this type of configuration.

Here, we are more particularly interested in taking into account the inertial coupling between modes, obtained in water at rest (mean flow speed zero). The reference solution is provided by a calculation performed with *Code_Aster* using the CALC_MATR_AJOU operator.


.. toctree::
    :hidden:

    self

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

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    R_sultats_de_la_mod_lisation_A
    Synth_se_des_r_sultats