A NUMERICAL STUDY OF IGNITION IN A PREMIXED FLAME BURNER

This paper presents a random numerical method which combines a random vortex method and a random choice method. With the assumption of incompressibility, the equations governing the fluid motion can be uncoupled from the equations governing the chemical reaction. A hybrid random vortex method is used for solving the Navier-Stokes equation which governs the fluid motion. A combustion process is governed by the reaction-diffusion system for the conservation of energy and the various chemical species participating in reaction. A random choice method is used for modeling reaction-diffusion equations. The method is applied to an ignition of the Bunsen burner. Flame propagation profiles are obtained and have good agreement with experimental results.