CARS and Fluorescent study of ignition of H2/O2 mixtures upon photodissociation of O2 molecular

CARS and Fluorescent study of ignition of H2/O2 mixtures upon photodissociation of O2 molecular

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The research is devoted to gas mixtures ignition by UV laser radiation.The dissociation of O2 molecules by a pulse of excimer ArF laser radiation at 193-nm wavelength with formation of the chemically active oxygen atoms initiating chain reactions which cause ignition of H2/O2 mixture Cheek Stain was employed.The experimental test bench was created multi tool with CARS and fluorescent techniques for experimental investigation of some peculiarities of mixture ignition and combustion caused by such photo-dissociation, at conditions typical for combustion chamber.

Two-dimensional numerical modeling of combustion process in model combustion chamber, based on kinetic mechanism of H2 oxidation including atom O(1P) and radicals OH(A2Σ+), was performed.