Q modeling
==============

It's the same modeling as C, but with FORMULATION ='U_P'.


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

Elements MEAXQU4, MEAXFLQ4, MEAXFSS2


.. image:: images/100017F80000263E000011ACFB2932AB9A465335.svg
    :width: 493
    :height: 228


.. _RefImage_100017F80000263E000011ACFB2932AB9A465335.svg:

Boundary conditions:

In all the knots on the face :math:`M`


.. code-block:: text
 DDL_IMPO: (GROUP_NO): knot/surf PRES: 0. PHI :0.)

In all the nodes of the piston


.. code-block:: text
 (GROUP_NO: noeupist DY: 0.)

Point :math:`\mathrm{M1}:\mathrm{N019}`, :math:`\mathrm{M2}:\mathrm{N020}`, :math:`\mathrm{M3}:\mathrm{N021}`, :math:`A:\mathrm{N01}`


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


.. csv-table::

    "Number of knots:", "21"
    "Number of meshes and types:", "12 QUAD4, 4 SEG2"



Tested values
---------------


.. csv-table::

    "**Frequency**", ""
    "**Reference**", "**Error (%)**"
    "13.8285", "< 0.01"