LES of Laser Initiation of Combustion of Gaseous Fuel-Air Mixture

Abstract

Large Eddy Simulation has been carried out to understand the laser initiation of combustion of lean hydrogen-air mixture in homogeneous isotropic turbulence. Initially, the blast wave from the breakdown zone sweeps out most the mixture surrounding the hot core zone at high velocity preventing formation of burning zone. The combustion initiates only if the core zone contains enough heat to sustain a steady flame thereafter.