Time-resolved thermometric investigation of flame quenching between parallel flat plates

• This paper presents a thermal characterization of flame quenching by cold surfaces. The temperature evolution was investigated in constant volume chamber. 1-D filtered Rayleigh scattering at 10 kHz implemented very narrow channels. New parameters that could help predicting events are discussed. Understanding the flames surfaces requires an accurate heat transfer. study time resolved thermometry events, geometry mimics arrester located between two large tanks. specificity this arrangement laminar section reach relatively high apparent velocity, around 13 m/s. One-dimensional high-speed (10 kHz) (FRS) along with dynamic pressure measurements. Thermometry FRS used to measure spatial and temporal front as well burnt gases, propagated section. Quenching assessed analysis methane-air mixture 0.8 equivalence ratio, initially quiescent atmospheric room temperature. Three distances elements, namely parallel flat aluminum plates, were investigated. results showed systematic obtained when decreased below 1600 K. In addition, integral profile across be predict events. Based on transfer analysis, explanations for these proposed.