Modeling A
==============


Characteristics of modeling A
-------------------------------------


.. image:: images/1000000000000466000002DA03A2C61069B09DF6.png
    :width: 4.7638in
    :height: 3.0902in


.. _RefImage_1000000000000466000002DA03A2C61069B09DF6.png:

Figure 3.1-1: Meshing a sector of the problem geometry

A single sector is meshed, its angular opening is :math:`1/{21}^{\mathit{ème}}` by :math:`360°` (3D modeling).

The calculation does not take into account the rotation of the structure.


Characteristics of the mesh
----------------------------

Number of knots: 1077

Number of meshes and types: 160 HEXA20


Tested sizes and results
------------------------------


.. csv-table::

    "Modes", "Reference Value", "Reference Type", "Tolerance (%)"
    "1,2"," :math:`442.1` ", "'SOURCE_EXTERNE'", ":math:`3.0`"
    "3,4"," :math:`1452.0` ", "'SOURCE_EXTERNE'", ":math:`3.0`"
    "5,6"," :math:`3342.0` ", "'SOURCE_EXTERNE'", ":math:`3.0`"
    "7,8"," :math:`4855.0` ", "'SOURCE_EXTERNE'", ":math:`3.0`"