These commands define radiation options for use in thermal analyses. The commands are grouped by functionality.
Table 2.97: Radiation Matrix Method
| These AUX12 commands calculate radiation view factors and to create a radiation substructure for the Radiation Matrix method. | ||
|---|---|---|
| EMIS | Specifies the emissivity as a material property. | |
| GEOM | Defines the geometry specifications for the radiation matrix calculation. | |
| MPRINT | Specifies that radiation matrices are to be printed. | |
| SPACE | Defines a space node for radiation. | |
| VTYPE | Specifies the viewing procedure used to determine the form factors. | |
| WRITE | Writes the radiation matrix file. | |
Table 2.98: Radiosity Solver
| These AUX12 commands calculate the radiation view factors and to specify the solution parameters for the Radiosity solver method. | ||
|---|---|---|
| HEMIOPT | Specifies options for Hemicube view factor calculation. | |
| RADOPT | Specifies Radiosity Solver options. | |
| SPCNOD | Defines a space node for radiation using the Radiosity method. | |
| SPCTEMP | Defines a free-space ambient temperature for radiation using the Radiosity method. | |
| V2DOPT | Specifies 2D/axisymmetric view factor calculation options. | |
| VFDI | Specifies diagnostic options to check that the row sum relationship is satisfied. | |
| VFOPT | Specifies options for view factor file. | |
| VFQUERY | Queries and prints element Hemicube view factors and average view factor. | |
| VFSM | Adjusts view factor matrix to satisfy reciprocity and/or row sum properties (view factor smoothing). | |
| VFUP | Controls view factor updating at the substep level for a coupled-field radiation analysis that includes large-deflection effects. | |