Validation of Surface Chemistry Models Using Low Pressure Stagnation-Point Flames: Measurements of OH Above Platinum Surface

摘要

Near-surface laser-induced fluorescence (LIF) measurements of OH are performed in the post-flame region of low pressure hydrogen/oxygen flames in stagnation flows above catalytic and on-catalytic surfaces. Measurements of the normalized gradient of the OH number density near the surface are shown to be sensitive to changes in surface reaction rates, and thus can be used as a test of surface chemical mechanisms.