 |
8.3
general documentation
|
|
|
8.3
general documentation
|
|
Structure containing the radiation module parameters. More...
#include <cs_rad_transfer.h>
Collaboration diagram for cs_rad_transfer_params_t:Data Fields | |
| cs_rad_transfer_model_t | type |
| int | nrphas |
| int | iimpar |
| int | verbosity |
| int | imodak |
| int | imoadf |
| int | iwrp1t |
| int | imfsck |
| double | xnp1mx |
| int | idiver |
| int | i_quadrature |
| int | ndirec |
| int | ndirs |
| cs_real_3_t * | vect_s |
| cs_real_t * | angsol |
| int | restart |
| int | nwsgg |
| cs_real_t * | wq |
| int | itpimp |
| int | ipgrno |
| int | iprefl |
| int | ifgrno |
| int | ifrefl |
| int | itpt1d |
| int | ifinfe |
| int | atmo_model |
| int | atmo_dr_id |
| int | atmo_dr_o3_id |
| int | atmo_df_id |
| int | atmo_df_o3_id |
| int | atmo_ir_id |
| bool | dispersion |
| cs_real_t | dispersion_coeff |
| cs_time_control_t | time_control |
Structure containing the radiation module parameters.
| angsol |
Weight of the solid angle.
| int atmo_df_id |
Atmospheric radiation model: id of the Diffuse Solar band or -1 if not activated (automatically computed)
| int atmo_df_o3_id |
Atmospheric radiation model: id of the Diffuse Solar O3 band (SUV) or -1 if not activated (automatically computed)
| int atmo_dr_id |
Atmospheric radiation model: id of the Direct Solar band or -1 if not activated (automatically computed)
| int atmo_dr_o3_id |
Atmospheric radiation model: id of the Direct Solar O3 band or -1 if not activated (automatically computed)
| int atmo_ir_id |
Atmospheric radiation model: id of the InfraRed band or -1 if not activated (automatically computed)
| int atmo_model |
Atmospheric radiation model:
| bool dispersion |
add dispersion (through diffusion)
| cs_real_t dispersion_coeff |
dispersion coefficient. The dispersion coefficient leading to the best precision may depend on the chosen quadrature, and has been observed to be 3 for 128 directions (T4) and 5 for 32 directions (T2) on a (cube with point source) test case; the default value of 1 already improves precision in both cases.
| i_quadrature |
Index of the quadrature and number of directions for a single octant.
Sn quadrature (n(n+2) directions)
| idiver |
Explicit radiative source term computation mode -1: no renormalization 0: Semi-analytic (mandatory if transparent) 1: Conservative 2: Corrected semi-analytic (to be conservative) REMARK: if transparent, idiver = -1 automatically in DOM
Indicates the method used to calculate the radiative source term:
| ifgrno |
| ifinfe |
Modeling of an infinite extrusion for open boundaries.
| ifrefl |
| iimpar |
Verbosity level in the log concerning the calculation of the wall temperatures:
| imfsck |
FSCK model (0: off, 1: on)
FSCK model:
| imoadf |
ADF model: 0: not used 1: with wavelength interval of a 8 2: with wavelength interval of a 50
ADF model:
| imodak |
Absorption coefficient computation 0: without modak 1: with modak
When gas or coal combustion is activated, imodak indicates whether the absorption coefficient shall be calculated "automatically" (=1) or read from the data file (=0).
| ipgrno |
| iprefl |
| itpimp |
| itpt1d |
See CS_BOUNDARY_RAD_WALL_GRAY_1D_T
| iwrp1t |
P1 model transparency warnings counter.
| ndirec |
Number of directions for the angular discretisation of the radiation propagation with the DOM model.
No other possible value, because of the way the directions are calculated.
The calculation with 32 directions may break the symmetry of physically axi-symmetric cases (but the cost in CPU time is much lower than with 128 directions).
Useful if and only if the radiation module is activated with the DOM method.
| ndirs |
For the Tn quadrature, ndirec squared
| nrphas |
Phase which radiates (bulk by default, but may be coal class or fuel droplets phase).
| nwsgg |
Spectral radiation models (ADF and FSCK).
Number of ETRs to solve.
| restart |
Indicates whether the radiation variables should be initialized or read from a restart file.
| time_control |
Determines at which time steps the variables are updated Also, in order to have proper initialization of the variables, the radiation module should always be called at the first time step of a calculation (restart or not).
model activation and type
| vect_s |
Direction vectors of angular values of the quadrature sx, sy, sz.
| verbosity |
Radiance resolution verbosity
Verbosity level in the log concerning the calculation of the radiative transfer equation:
| wq |
Weights of the Gaussian quadrature
| xnp1mx |
For the P-1 model, percentage of cells for which we allow the optical thickness to exceed unity, although this should be avoided. (more precisely, where 
is lower than 1, where 
is the absorption coefficient of the medium and 
is a characteristic length of the domain).
1.9.4