Air flow distribution in ventilated room: RTD model synthesis based on simulated annealing and CFD

This communication presents the main principles of an approach, which is based on RTD theory and gives an illustration of its potential extension to ventilation problems. The general solving strategy adopted, consisting in a two-level dissociated treatment of parametric identification and structural identification of models. The comparison between experimental residence time distribution curves recorded on a ventilated laboratory enclosure and the simulated ones shows a good agreement. For this problem, a comparison with results obtained from a Computational Fluid Dynamics (CFD) tool has been performed. (authors)