The DO radiation model is improved to give better accuracy in cases where geometrical optics (e.g. focusing on lens, shadowing) is essential for the simulation.
Three discretisation level parameters have been added to the DO model:
- Level 5 (2nd order)
- Level 6 (2nd order)
- Level 7 (2nd order)
For the directional (solar) radiation, the new algorithm is always enabled
providing the sharper shadows behind the objects.
For diffusive (thermal) radiation, it is optionally enabled by selecting one
of the 3 new discretisation levels.
The DO radiation model is available in the HVAC module only.