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16_Sedov_Blast_Wave: add compressible Sedov blast wave tutorial #3

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5 changes: 5 additions & 0 deletions 16_Sedov_Blast_Wave/CASE/DATA/run.cfg
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[job_defaults]

n_procs: 1
n_threads: 1

238 changes: 238 additions & 0 deletions 16_Sedov_Blast_Wave/CASE/DATA/setup.xml
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<?xml version="1.0" encoding="utf-8"?><Code_Saturne_GUI case="CASE" solver_version="9.1" study="code_saturne" version="2.0">
<additional_scalars/>
<analysis_control>
<output>
<mesh id="-1" label="Fluid domain" type="cells">
<all_variables status="on"/>
<location>all[]</location>
<writer id="-1"/>
</mesh>
<mesh id="-2" label="Boundary" type="boundary_faces">
<all_variables status="on"/>
<location>all[]</location>
<writer id="-1"/>
</mesh>
<probe_format choice="CSV"/>
<probe_recording_frequency>1</probe_recording_frequency>
<probes_interpolation choice=""/>
<probes_snap choice=""/>
<writer id="-1" label="results">
<directory name="postprocessing"/>
<format name="ensight" options="separate_meshes"/>
<frequency period="time_step">10</frequency>
<output_at_end status="on"/>
<output_at_start status="on"/>
<time_dependency choice="fixed_mesh"/>
</writer>
</output>
<profiles/>
<scalar_balances/>
<time_averages/>
<time_parameters>
<max_courant_num>1</max_courant_num>
<maximum_time>0.5</maximum_time>
<property name="courant_number" label="CourantNb"/>
<property name="fourier_number" label="FourierNb"/>
<property name="local_time_step" label="LocalTime">
<postprocessing_recording status="off"/>
<probes choice="0"/>
</property>
<time_passing>1</time_passing>
<time_step_max_factor>10</time_step_max_factor>
<time_step_min_factor>0.1</time_step_min_factor>
<time_step_ref>5e-05</time_step_ref>
<time_step_var>0.1</time_step_var>
</time_parameters>
</analysis_control>
<boundary_conditions>
<boundary label="x0" name="1" nature="symmetry">X0</boundary>
<boundary label="x1" name="2" nature="outlet">X1</boundary>
<boundary label="y0" name="3" nature="symmetry">Y0</boundary>
<boundary label="y1" name="4" nature="outlet">Y1</boundary>
<boundary label="z0" name="5" nature="symmetry">Z0</boundary>
<boundary label="z1" name="6" nature="symmetry">Z1</boundary>
<symmetry label="x0" field_id="none"/>
<symmetry label="y0" field_id="none"/>
<outlet label="x1" field_id="none">
<compressible_type choice="supersonic_outlet"/>
<scalar name="total_energy" type="thermal" choice="neumann">
<neumann>0</neumann>
</scalar>
</outlet>
<outlet label="y1" field_id="none">
<compressible_type choice="supersonic_outlet"/>
<scalar name="total_energy" type="thermal" choice="neumann">
<neumann>0</neumann>
</scalar>
</outlet>
<symmetry label="z0" field_id="none"/>
<symmetry label="z1" field_id="none"/>
</boundary_conditions>
<calculation_management>
<start_restart>
<frozen_field status="off"/>
</start_restart>
</calculation_management>
<lagrangian model="off"/>
<numerical_parameters>
<velocity_pressure_algo choice="simplec"/>
</numerical_parameters>
<physical_properties>
<fluid_properties>
<material choice="user_material"/>
<method choice="user_properties"/>
<property name="density" choice="predefined_law" label="Density">
<formula status="on" zone_id="1">density = 1;</formula>
<initial_value>1.17862</initial_value>
</property>
<property name="dynamic_diffusion" choice="constant" label="DiffDyn">
<initial_value>0.0</initial_value>
<listing_printing status="off"/>
<postprocessing_recording status="off"/>
</property>
<property name="molecular_viscosity" choice="constant" label="LamVisc">
<initial_value>0</initial_value>
<listing_printing status="off"/>
<postprocessing_recording status="off"/>
</property>
<property name="specific_heat" choice="constant" label="SpecHeat">
<initial_value>1005</initial_value>
<listing_printing status="off"/>
<postprocessing_recording status="off"/>
</property>
<property name="thermal_conductivity" choice="constant" label="ThermalCond">
<initial_value>0</initial_value>
<listing_printing status="off"/>
<postprocessing_recording status="off"/>
</property>
<property name="volume_viscosity" choice="constant" label="VolVisc">
<initial_value>0</initial_value>
<listing_printing status="off"/>
<postprocessing_recording status="off"/>
</property>
<reference_molar_mass>0.028966</reference_molar_mass>
<reference_pressure>101325</reference_pressure>
<reference_temperature>0.00348310693138</reference_temperature>
</fluid_properties>
<gravity>
<gravity_x>0</gravity_x>
<gravity_y>0</gravity_y>
<gravity_z>0</gravity_z>
</gravity>
<notebook/>
<omega>
<omega_x>0</omega_x>
<omega_y>0</omega_y>
<omega_z>0</omega_z>
</omega>
<time_tables/>
</physical_properties>
<solution_domain>
<extrusion/>
<faces_cutting status="off"/>
<joining/>
<mesh_cartesian>
<x_direction ncells="200" min="0.0" max="0.2" prog="1.0" law="constant"/>
<y_direction ncells="200" min="0.0" max="0.2" prog="1.0" law="constant"/>
<z_direction ncells="1" min="0.0" max="0.2" prog="1.0" law="constant"/>
</mesh_cartesian>
<mesh_origin choice="mesh_cartesian"/>
<mesh_smoothing status="off"/>
<meshes_list/>
<periodicity/>
<thin_walls/>
<volumic_conditions>
<zone label="all_cells" id="1" initialization="on" physical_properties="on">all[]</zone>
</volumic_conditions>
</solution_domain>
<thermophysical_models>
<ale_method/>
<atmospheric_flows model="off">
<large_scale_meteo status="off"/>
<read_meteo_data status="off"/>
</atmospheric_flows>
<compressible_model model="constant_gamma">
<variable name="temperature" type="model" label="temperature">
<boundary_diffusion_flux_reconstruction mode="off"/>
<formula status="off" zone_id="1"/>
<rhs_reconstruction>1</rhs_reconstruction>
</variable>
</compressible_model>
<conjugate_heat_transfer>
<external_coupling>
<syrthes_instances/>
</external_coupling>
</conjugate_heat_transfer>
<gas_combustion model="off">
<soot_model model="off"/>
<thermodynamical_pressure status="off"/>
</gas_combustion>
<immersed_boundaries/>
<internal_coupling>
<coupled_scalars/>
<solid_zones/>
</internal_coupling>
<interparticles_radiative_transfer>
<emissivity>1.0</emissivity>
<status>off</status>
</interparticles_radiative_transfer>
<porosities/>
<radiative_transfer model="off">
<absorption_coefficient type="constant">0</absorption_coefficient>
<restart status="on"/>
</radiative_transfer>
<reference_values>
<length/>
</reference_values>
<source_terms/>
<thermal_scalar model="total_energy">
<property name="boundary_temperature" support="boundary" label="Boundary temperature"/>
<property name="thermal_flux" support="boundary" label="Thermal flux"/>
<variable name="total_energy" type="thermal" label="TotEner">
<boundary_diffusion_flux_reconstruction mode="off"/>
<formula status="off" zone_id="1"/>
<max_value>1e+12</max_value>
<min_value>-1e+12</min_value>
<rhs_reconstruction>1</rhs_reconstruction>
<turbulent_flux_model>SGDH</turbulent_flux_model>
</variable>
</thermal_scalar>
<turbomachinery model="off">
<joining/>
</turbomachinery>
<turbulence model="off">
<gravity_terms status="on"/>
<initialization zone_id="1" choice="reference_value"/>
<reference_velocity>1</reference_velocity>
<wall_function>0</wall_function>
</turbulence>
<velocity_pressure>
<initialization>
<formula zone_id="1">velocity[0] = 0.;
velocity[1] = 0.;
velocity[2] = 0.;</formula>
</initialization>
<property name="stress" label="Stress" support="boundary"/>
<property name="stress_normal" label="Stress, normal" support="boundary">
<postprocessing_recording status="off"/>
</property>
<property name="stress_tangential" label="Stress, tangential" support="boundary">
<postprocessing_recording status="off"/>
</property>
<property name="total_pressure" label="total_pressure"/>
<property name="yplus" label="Yplus" support="boundary"/>
<variable name="pressure" label="Pressure">
<boundary_diffusion_flux_reconstruction mode="off"/>
<formula status="on" zone_id="1">pressure = 1;</formula>
<rhs_reconstruction>2</rhs_reconstruction>
</variable>
<variable name="velocity" dimension="3" label="Velocity">
<boundary_diffusion_flux_reconstruction mode="off"/>
<rhs_reconstruction>1</rhs_reconstruction>
</variable>
</velocity_pressure>
</thermophysical_models>
<user_functions>
<calculator/>
</user_functions>
</Code_Saturne_GUI>
130 changes: 130 additions & 0 deletions 16_Sedov_Blast_Wave/CASE/SRC/cs_user_initialization.cpp
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/*============================================================================
* User initialization for the Sedov blast wave problem.
*
* A high-pressure region (r < r0) surrounded by a low-pressure ambient
* creates a cylindrical shock wave propagating radially outward.
*============================================================================*/

/* code_saturne version 9.1 */

/*
This file is part of code_saturne, a general-purpose CFD tool.

Copyright (C) 1998-2025 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.
*/

/*----------------------------------------------------------------------------*/

#include "cs_defs.h"

/*----------------------------------------------------------------------------
* Standard C library headers
*----------------------------------------------------------------------------*/

#include <assert.h>
#include <math.h>

#if defined(HAVE_MPI)
#include <mpi.h>
#endif

/*----------------------------------------------------------------------------
* PLE library headers
*----------------------------------------------------------------------------*/

#include <ple_coupling.h>

/*----------------------------------------------------------------------------
* Local headers
*----------------------------------------------------------------------------*/

#include "cs_headers.h"

/*----------------------------------------------------------------------------*/

BEGIN_C_DECLS

/*----------------------------------------------------------------------------*/
/*!
* \file cs_user_initialization.cpp
*
* \brief Initialization prior to solving time steps.
*/
/*----------------------------------------------------------------------------*/

/*============================================================================
* User function definitions
*============================================================================*/

/*----------------------------------------------------------------------------*/
/*!
* \brief Define initial conditions for variables.
*
* This function is not yet called by code_saturne, use
* `cs_user_initialization` for the time being
* This function is called before the beginning of the computation
* allowing an overload of the GUI defined initialization (called just
* after cs_gui_initial_conditions).
*
* \param[in, out] domain pointer to a cs_domain_t structure
*/
/*----------------------------------------------------------------------------*/

void
cs_user_initialization(cs_domain_t *domain)
{
const cs_lnum_t n_cells = cs_glob_mesh->n_cells;
const cs_real_3_t *cell_cen =
(const cs_real_3_t *)cs_glob_mesh_quantities->cell_cen;

/* Access field pointers */
cs_real_t *rho = CS_F_(rho)->val;
cs_real_t *p = CS_F_(p)->val;
cs_real_3_t *vel = (cs_real_3_t *)CS_F_(vel)->val;

/* Sedov blast wave parameters:
* rho0 - uniform ambient density
* pinfty - ambient pressure (very low)
* phot - high pressure inside the blast region
* r0 - initial blast radius */
const cs_real_t rho0 = 1.0;
const cs_real_t pinfty = 0.01;
const cs_real_t phot = 100.0;
const cs_real_t r0 = 0.005;

/* Loop over all cells: set uniform density and zero velocity,
* then apply a pressure discontinuity at radius r0 */
for (cs_lnum_t c = 0; c < n_cells; c++) {
double x = cell_cen[c][0];
double y = cell_cen[c][1];
double r = sqrt(x*x + y*y);

rho[c] = rho0;
vel[c][0] = 0.0;
vel[c][1] = 0.0;
vel[c][2] = 0.0;

if (r < r0)
p[c] = phot; /* hot region: energy source */
else
p[c] = pinfty; /* ambient: near-vacuum pressure */
}
}

/*----------------------------------------------------------------------------*/

END_C_DECLS
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