Numerical Study of Spray-Induced Turbulence Using Industrial Fire-Mitigation Nozzles

A numerical investigation of the spray-induced turbulence generated from industrial spray nozzles is carried out to better understand roles nozzle on fires or explosions in different accidental scenarios. Numerical simulations are first validated against experimental data single case using monodisperse and polydisperse assumption for droplet diameters. The polydispersion proven be necessary correctly predict gas velocities. turbulent kinetic energy has dominant values inside cone, decreases rapidly with vertical distance nozzle, strongly affected by diameter. On contrary, integral length scale found have high outside cone. Two interacting sprays injected then investigated numerically model. water such can generate intensity near-nozzle region, this nozzles. understanding system beneficial evaluation several important phenomena as explosion enhancement. guideline obtained double useful large-scale simulations.