Exploring the daylight simulation of filter panels in a pre-tunnel structure

The study of a pre-tunnel structure that filters the daylight has been carried out by means of 3D daylight simulation software. The 1:1 scale model of the tunnel and the pre-tunnel has been realized and two different sequences of filtering panels have been simulated. The first sequence reproduces the panels experimented in a previous study with a real scale model; the second sequence is aimed to optimize the filter effect, acting on the grid of the panels.