Infrared signature modelling of a rocket jet plume - comparison with flight measurements

The infrared signature modelling of rocket plumes is a challenging problem involving rocket geometry, propellant composition, combustion modelling, trajectory calculations, fluid mechanics, atmosphere modelling, calculation of gas and particles radiative properties and of radiative transfer through...

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Bibliographic Details
Published in:Journal of physics. Conference series 2016-01, Vol.676 (1), p.12020
Main Authors: Rialland, V, Guy, A, Gueyffier, D, Perez, P, Roblin, A, Smithson, T
Format: Article
Language:English
Subjects:
Acoustics
Aluminizing
Atmospheric models
Engineering Sciences
Fluid mechanics
Infrared signatures
Mathematical models
Optics
Photonic
Physics
Propellant combustion
Radiative transfer
Reactive fluid environment
Rockets
Solid propellant rocket engines
Sounding rockets
Spectra
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Summary:The infrared signature modelling of rocket plumes is a challenging problem involving rocket geometry, propellant composition, combustion modelling, trajectory calculations, fluid mechanics, atmosphere modelling, calculation of gas and particles radiative properties and of radiative transfer through the atmosphere. This paper presents ONERA simulation tools chained together to achieve infrared signature prediction, and the comparison of the estimated and measured signatures of an in-flight rocket plume. We consider the case of a solid rocket motor with aluminized propellant, the Black Brant sounding rocket. The calculation case reproduces the conditions of an experimental rocket launch, performed at White Sands in 1997, for which we obtained high quality infrared signature data sets from DRDC Valcartier. The jet plume is calculated using an in-house CFD software called CEDRE. The plume infrared signature is then computed on the spectral interval 1900-5000 cm-1 with a step of 5 cm-1. The models and their hypotheses are presented and discussed. Then the resulting plume properties, radiance and spectra are detailed. Finally, the estimated infrared signature is compared with the spectral imaging measurements. The discrepancies are analyzed and discussed.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/676/1/012020