SPATIALLY RESOLVED MULTISPECIES AND TEMPERATURE ANALYSIS IN HYDROGEN FLAMES

We report on spatially resolved simultaneous measurements of temperature and majority species concentrations along a line segment in a premixed laminar H-2-air flame. The results are obtained from Raman and Rayleigh scattering by using a narrow-band KrF excimer laser and a spectrally and spatially resolving detector system that consists of a high-throughput spectrometer and a gated, intensified, two-dimensional CCD camera. The data presented here are integrated over 100 laser shots. Absolute density profiles of N2, O2, H2O, and H-2, as well as temperature profiles at various heights through the flame, are presented. A discussion of the required calibration procedures and a summary of the necessary spectroscopic background are also included in this paper.