Abstract
Two-dimensional laser-induced fluorescence (2D-LIF) imaging of OH radicals, excited at 308 nm, has been employed to visualize the flame front in an internal combustion engine burning air/propane mixtures. Light sheet thicknesses down to 70 μm have been attained for excitation. Hydroxyl radicals were detected up to pressures of 7.5 bar at engine speeds of 500 rpm. An upper limit of 300 μm for the flame front thickness was obtained from line intensity profiles.
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Suntz, R., Becker, H., Monkhouse, P. et al. Two-dimensional visualization of the flame front in an internal combustion engine by laser-induced fluorescence of OH radicals. Appl. Phys. B 47, 287–293 (1988). https://doi.org/10.1007/BF00716087
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DOI: https://doi.org/10.1007/BF00716087