An experimental and numerical study of the particle dispersion in a ventilated room

Abstract

This paper focuses on the solid contaminant dispersion in a ventilated room under different ventilation conditions. Experiments in a full-scale laboratory chamber are conducted in order to validate the numerical results. The ventilation efficiency for different positions of the inlet and outlet, as well as the influence of the ventilation rate, was established. A two-layer k-ε high Reynolds number is used for the continuous phase, with the same boundaries and initial conditions the experimental setup. The 113 000 particles in the range of 0.35-10 μm are tracked during the 600 s simulation time. The importance of the gravity forces for such small particles is established.