Numerical Simulation Of Distribution Of The Size Of Soot Particles In A Laminar Flame

The objective of this study is to determine the characteristics of soot (size and distribution) in a laminar flame of diffusion(ethylene_air).The non intrusive technique used is the incandescence induced by laser (LII) discovered by Melton[1]. The interaction laser-particle of soot is described by an ideal model of heat transfer and mass including the various modes of thermal losses (vaporization, conduction, radiation).¶The equations obtained describing the temporal evolution of the diameter and the temperature of the particle are solved numerically .¶The ideal model is validated by experimental measurements and confrontation with various powers of the exiting laser ,the result is satisfactory.