Radiation measurements in rarefied Titan atmospheres

Jacobs, C. M. and Morgan, R. G. (2009). Radiation measurements in rarefied Titan atmospheres. In: 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition; [papers]. 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Orlando, FL, (). 5 - 8 January 2009. doi:10.2514/6.2009-1029


Author Jacobs, C. M.
Morgan, R. G.
Title of paper Radiation measurements in rarefied Titan atmospheres
Conference name 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Conference location Orlando, FL
Conference dates 5 - 8 January 2009
Proceedings title 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition; [papers]
Journal name 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Series AIAA meeting papers on disc, [14.]2009,1
Place of Publication Reston, VA United States
Publisher American Institute of Aeronautics and Astronautics
Publication Year 2009
Year available 2009
Sub-type Fully published paper
DOI 10.2514/6.2009-1029
ISBN 9781563479694
1563479699
Total pages 11
Language eng
Abstract/Summary For reentry operations into atmospheres such as Titan, accurate, reliable radiation data is essential for estimating the total heat transfer experienced by the vehicle. Experiments are being undertaken in the X2 facility at the University of Queensland to measure the radiation produced by superorbital entry in the rarefied section of the trajectory. These experiments use the Nonreflected Shock Tube (NRST) mode of experimentation, which allows full-scale measurement of the radiation in the flow. This paper presents results from the continuing experimental work being conducted in the X2 facility, focussing on freestream pressures between 2 and 13 Pa for a 98% N 2, 2% CH 4 Titan gas mixture. For radiating flows with Titan gas, the main radiator of interest is CN (cyanogen), formed in high concentrations in the nonequilibrium region behind the shock. The experimental data includes static and pitot pressure measurements of the flows and a spectrometer is used to capture the radiation in the CN violet band. Flow visualisation is also achieved with a high speed camera. Copyright
Subjects 1912 Space and Planetary Science
2202 History and Philosophy of Specific Fields
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
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