Single-shot, time-resolved planar laser-induced incandescence (TR-LII) for soot particle sizing - part II: in a turbulent flame

Abstract

Two dimensional measurements of the size of primary soot particles (dp) is demonstrated in a turbulent flame, building on Part I of this paper [Single-shot, time-resolved planar laser-induced incandescence (TR-LII) for soot particle sizing – Part I: in a laminar flame]. The measurements were performed in a C2H4/air premixed, turbulent sooty flame, with the aim of demonstrating the potential of measuring the size of primary soot particles in a turbulent flame with planar TR-LII. Instantaneous planar measurements of dp have been performed at different height of the sooty flame and sample images are presented in the present work. Both statistical data and joint statistical measurements are calculated from these images at various locations, to reveal the relationship between dp and soot volume fraction together with that between dp and particle number density.