Numerical Calculations of UV Emission and Absorption Spectra of OH.
Final rept. 1 Mar 72-1 Mar 73,
TECHNOLOGY INC DAYTON OHIO
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The report presents the details and uses of a computer program designed to predict the ultraviolet emission and absorption spectra of OH associated with combustor flowfields. The intended purpose of the computer program is to facilitate the development of spectroscopic diagnostic techniques for specific application to supersonic mixing and combustion. The mathematical models used to represent the emitting and absorbing gas are given. Geometry and apparatus considerations are discussed, as well as calibration procedures. The computation scheme is outlined including the basic modes of operation, and the manner in which input data are submitted is explained. The various uses of the computer program are demonstrated and comparisons are made with experimental spectra. Two graphical inversion techniques are also presented, one of which can be used to obtain radial profiles of temperature and OH number density from an axisymmetric combustor flowfield. A listing of the computer program and a partial printout are included.
- Atomic and Molecular Physics and Spectroscopy
- Combustion and Ignition