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Hydroxyl Radical Measurements in the Flame Using LIF
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 Title & Authors
Hydroxyl Radical Measurements in the Flame Using LIF
Lee, Byeong-Jun; Gil, Yong-Seok; Jeong, Seok-Ho;
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Laser applied combustion diagnostic techniques-laser induced fluorescence (LIF) and coherent anti-Stokes Ramann spectroscopy (CARS)-are demonstrated. The profiles of hydroxyl radical (OH) and temperature in the counterflow burner are measured and compared with the numerical results. OH radical is excited on the Q(6) line of the $A^2$(1, 0) band transition (281.1 nm) and LIF signal is measured at the the bands of (0, 0) and (1, 1) transition (306~326 nm). Absolute OH radical is obtained by using the laser absorption technique. The quenching effects are considered. Temperature is measured using broadband CARS system. Two dimensional OH radical profile is also obtained. The profiles of OH radical and temperature are found to agree well with those of numerical calculation.
Laser Induced Fluorescence;Laser Absorption Technique;Coherent Auti-Stokes Ramann Spectroscopy;
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