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/*============================================================================
* Code_Saturne documentation page
*============================================================================*/
/*
This file is part of Code_Saturne, a general-purpose CFD tool.
Copyright (C) 1998-2016 EDF S.A.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*----------------------------------------------------------------------------*/
/*!
\page cs_user_postprocess_var Output additional variables on a post-processing mesh (cs_user_postprocess_var.f90)
\section cs_user_postprocess_var_h_intro Introduction
The \ref usvpst user subroutine allows one to output additional variables
on a post-processing mesh. Several "automatic" post-processing meshes may be
defined :
- The volume mesh (\c ipart=-1)
- The boundary mesh (\c ipart=-2)
- SYRTHES coupling surface (\c ipart < -2)
- Cooling tower exchange zone meshes (\c ipart < -2) if \c ichrze = 1
Additional meshes (cells or faces) may also be defined through the GUI or
using the \ref cs_user_postprocess_meshes function from the
cs_user_postprocess.c file.
The examples of post-processing given below are using the meshes defined
\ref cs_user_postprocess "here".
\section cs_user_postprocess_var_h_volume_mesh Output on the volume mesh (ipart = -1)
\subsection cs_user_postprocess_var_h_volume_mesh_tke Output of the turbulent kinetic energy for the Rij-Epsilon model on the volume mesh
One can define, compute and post-process the turbulent kinetic energy for the Rij-Epsilon
as shown in the following example.
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_1
\subsection cs_user_postprocess_var_h_volume_mesh_mom Output of a combination of moments
A combination of moments can also be post-processed using the \ref usvpst subroutine.
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_2
\section cs_user_postprocess_var_h_boundary_mesh Output on the boundary mesh (ipart = -2)
Variables can be post-processed on the boundary mesh even if they are orignally
define at cell centers. The following code block illustrates the post-processing
of the density on the boundary mesh.
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_3
\section cs_user_postprocess_var_h_user_mesh_1_2 Output on user meshes 1 or 2
User meshes appearing in the examples are defined \ref cs_user_postprocess "here".
\subsection cs_user_postprocess_var_h_user_mesh_1_2_vel Output of an interpolated velocity on user meshes
An interpolated velocity is computed on both interior and boundary faces using a simple linear
interpolation on user meshes 1 or 2.
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_4
\subsection cs_user_postprocess_var_h_user_mesh_1_2_pr Output of the pressure on user meshes
Similarly, the pressure is computed on both interior and boundary faces and then post-processed on user meshes
1 or 2.
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_5
\subsection cs_user_postprocess_var_h_user_mesh_cdg Output of the centers of gravity in different ways
The examples below illustrate how to output a same variable in different
ways (interlaced or not, using an indirection or not).
\subsubsection cs_user_postprocess_var_h_user_mesh_cdg1 Output of the centers of gravity, interleaved
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_6
\subsubsection cs_user_postprocess_var_h_user_mesh_cdg2 Output of the centers of gravity, non-interleaved, time-dependant
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_7
\subsubsection cs_user_postprocess_var_h_user_mesh_cdg3 Output of the centers of gravity, with indirection (parent-based)
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_8
\section cs_user_postprocess_var_h_user_mesh_3_4 Output on user meshes 3 or 4
\subsection cs_user_postprocess_var_h_user_mesh_3_4_vel Output of an interpolated velocity on user meshes
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_9
\subsection cs_user_postprocess_var_h_user_mesh_3_4_pr Output of the pressure on user meshes
\snippet cs_user_postprocess_var.f90 postprocess_var_ex_10
*/
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