Enclosure Radiation Symmetry Plane

Symmetry planes may be modeled with num_symmetry_planes>0. This allows geometrical models that are a half, quarter, or eighth of the corresponding "ull"models. All planes must be mutually orthogonal. The radiation facets are reflected across each symmetry plane to create the full model. The view factors are computed on this model before being rescaled to the original model. A given surface facet may then be able to see itself. Normally no RADIATION_SURFACE command is used on a surface lying in any of the symmetry planes, except if (partial) shielding is modeled. Specifying symmetry planes in this command only affects the calculation of view factors and has no effect on any other aspect of the simulation model.