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SPARK IGNITION OF TURBULENT METHANE/AIR MIXTURES REVEALED BY TIME-RESOLVED PLANAR LASER-INDUCED FLUORESCENCE AND DIRECT NUMERICAL SIMULATIONS

Kaminski, CF; Hult, J; Alden, M; Lindenmaier, S; Dreizler, A; Maas, U; Baum, M, "Spark ignition of turbulent methane/air mixtures revealed by time-resolved planar laser-induced fluorescence and direct numerical simulations", PROCEEDINGS OF THE COMBUSTION INSTITUTE 28:399-405(2000), DOI:10.1016/S0082-0784(00)80236-2, | pdf


Abstract

By use of high-speed planar laser-induced fluorescence (PLIF) imaging, the evolution of turbulent reactive flows was recorded and studied in real time in a filmlike manner. The technique was used to track the concentration field of the OH radical, which was produced during spark ignition of a turbulent methane/air mixture. The results were compared qualitatively to a two-dimensional direct numerical simulation of the same system using a detailed chemical mechanism and a detailed transport model.