Abstract
Single-pulse laser-saturated fluorescence (LSF) measurements of OH radical concentration in hydrogen-air jet diffusion flames have been performed. To our knowledge, these are the first reported single-pulse LSF measurements in turbulent nonpremixed flames. The single-pulse measurements have been used to calculate the average value, rms fluctuation, and probability density function (pdf) of OH concentration at various axial and radial positions within three flames under laminar (Re = 660), transitional (Re = 1600), and turbulent (Re = 8500) conditions. The OH concentration data complement existing major species concentration and temperature data.
© 1983 Optical Society of America
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