Abstract
Hydroxyl radical (OH) planar laser-induced fluorescence (PLIF) visualizations were performed in the University of Virginia supersonic combustion experiment. The test section was set up in configuration A, which includes a Mach 2 nozzle, combustor, and extender section. Hydrogen fuel was injected through an unswept compression ramp at two different equivalence ratios. Through the translation of the optical system and the use of two separate camera views, the entire optically accessible range of the combustor was imaged. Single-shot, average, and standard deviation images of the OH PLIF signal are presented at several streamwise locations. The results show the development of a highly turbulent flame structure and provide an experimental database to be used for numerical model assessment.
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Acknowledgments
Dr. Johansen was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC). This work was supported by the Air Force Office of Scientific Research (AFOSR) and NASA National Center for Hypersonic Combined Cycle Propulsion grant FA 9550-09-1-0611. The technical monitors are Chiping Li from the AFOSR and Rick Gaffney from NASA.
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Johansen, C.T., McRae, C.D., Danehy, P.M. et al. OH PLIF visualization of the UVa supersonic combustion experiment: configuration A. J Vis 17, 131–141 (2014). https://doi.org/10.1007/s12650-014-0197-2
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DOI: https://doi.org/10.1007/s12650-014-0197-2