Two-dimensional visualization of the flame front in an internal combustion engine by laser-induced fluorescence of OH radicals |
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Authors: | R Suntz H Becker P Monkhouse J Wolfrum |
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Institution: | (1) Physikalisch-Chemisches Institut, Im Neuenheimer Feld 253, D-6900 Heidelberg, Fed. Rep. Germany |
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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 m 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 m for the flame front thickness was obtained from line intensity profiles. |
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Keywords: | 07 60 42 30 82 20 |
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