UV Raman scattering measurements in a Mach 2 H2-air flame for assessment of CFD modelsAn UV narrowband tunable excimer laser is used for spontaneous Raman scattering measurements in hydrogen diffusion flames. The UV Raman system is characterized by a repetition rate of about 100 Hz, a temporal resolution of about 20 ns, and a spatial resolution of about 0.4 mm. It is concluded that a single KrF excimer laser based on spontaneous Raman scattering in conjunction with laser-induced predissociative fluorescence is capable of measuring instantaneously and simultaneously major species (H2, O2, N2, H2O), minor species (OH), and temperature.
Document ID
19930062822
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cheng, T. S. (NASA Headquarters Washington, DC United States)
Wehrmeyer, J. A. (NASA Headquarters Washington, DC United States)
Pitz, R. W. (Vanderbilt Univ. Nashville, TN, United States)
Jarrett, O., Jr. (NASA Headquarters Washington, DC United States)
Northam, G. B. (NASA Langley Research Center Hampton, VA, United States)