A125 Extinguishment characteristics of the jet diffusion flame by laser-induced blast wave

Abstract

In order to clarify the characteristics and mechanism of fire extinguishment with blast wave, the blowout experiments of methane-air jet diffusion flame have been performed by using a laser-induced breakdown. The blast wave extinguishment can be used as a firefighting technique to post-disaster fires. In this study,the blowout process has been visualized by using schlieren technique. And the probability profile has been measured by varying the distance from the breakdown point to the flame base.