Laser-based spectroscopic studies of H2/NO2 low-pressure flames

R. C. Sausa; S. L. Howard; A. J. Kotlar; A. W. Miziolek

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1991),
paper CThR44

Laser-based spectroscopic studies of H₂/NO₂ low-pressure flames

R. C. Sausa, S. L. Howard, A. J. Kotlar, and A. W. Miziolek

Conference on Lasers and Electro-Optics 1991

Baltimore, Maryland United States
12–17 May 1991
ISBN: 1-55752-189-1

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R. C. Sausa, S. L. Howard, A. J. Kotlar, and A. W. Miziolek, "Laser-based spectroscopic studies of H2/NO2 low-pressure flames," in Conference on Lasers and Electro-Optics, J. Bufton, A. Glass, T. Hsu, and W. Krupke, eds., Vol. 10 of OSA Technical Digest (Optica Publishing Group, 1991), paper CThR44.

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Abstract

Spatially resolved temperature profiles and profiles of major and minor species of a H₂/NO₂ low-pressure flame, are needed to better understand the chemistry occurring in this flame. The reactions involved in this flame are believed to be a subset of the more complex network of reactions needed for flame models that are being developed to simulate nitramine solid propellant combustion. In this paper, we report on temperature measurements obtained by coated Pt/Pt-Rh(10%) thermocouples and by OH laser-induced fluorescence (LIF) rotational spectra through its (A²Σ+⋯χ²Π) (1,0) band. The spectra are fitted by a multivariable computer program to a Boltzmann distribution, and a rotational temperature is abstracted. Species profiles of OH and NO₂ are obtained experimentally by LIF.

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