Abstract

Simulations with the Fire Dynamics Simulator (FDS) were performed to study the ability of Double Stream-Twin Jets (DS-TJ) air curtains to confine heat. Numerical simulations aimed to model a 1:34 scale tunnel, equipped with a heat source and two DS-TJ air curtains emerging from the tunnel ceiling. The novelty of this work was the imposition of low jet velocities to reduce fans power as much as possible, while ensuring confinement. Streamwise velocity and temperature were contrasted with experimental data.