Chemical Kinetics Phenomena in Rocket Engines
AEROJET ENGINEERING CORP AZUSA CA
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As part of an exploratory program of research in the chemical and physical kinetics of rocket exhaust gases, the emission spectra of rocket flames were examined with infrared, visible, and ultraviolet spectrographs of moderate dispersion. A high-speed portable grating spectrograph was constructed for observations in the visible region, and flames from rockets using ten different propellant combinations were photographed. The spectra have been analyzed and the species identified in most instances. A specially constructed infrared spectrograph disclosed a number of emission bands in the spectrum of the flame of a rocket using JP-3 and WFNA, but their identification and interpretation will require further study. Observations of the flames of rockets which will be tested in the future should be made with these instruments as well as with an ultraviolet spectrograph which is now available. A method for recording the changes in emission spectra along the axis of rocket exhaust flames was devised and tested. The method was shown to be feasible and should be applied to the study of a wide variety of rocket flames. It should be particularly valuable in determining the structure of the exhaust flame and in studying the phenomenon of exhaust flash.
- Atomic and Molecular Physics and Spectroscopy
- Combustion and Ignition
- Rocket Engines
- Rocket Propellants