Preliminary experimental investigation of air radiation in super-orbital expanding flow

Wei, H., Morgan, R. G., Sheikh, U. A., Jacobs, P. A., Gollan, R. J. and McIntyre, T. J. (2017). Preliminary experimental investigation of air radiation in super-orbital expanding flow. In: Gabi Ben-Dor, Ozer Igra and Oren Sadot, 30th International Symposium on Shock Waves 2: ISSW30-Volume 1. International Symposium on Shock Waves, Tel Aviv, Israel, (827-831). 19-24 July 2015. doi:10.1007/978-3-319-44866-4_8


Author Wei, H.
Morgan, R. G.
Sheikh, U. A.
Jacobs, P. A.
Gollan, R. J.
McIntyre, T. J.
Title of paper Preliminary experimental investigation of air radiation in super-orbital expanding flow
Conference name International Symposium on Shock Waves
Conference location Tel Aviv, Israel
Conference dates 19-24 July 2015
Proceedings title 30th International Symposium on Shock Waves 2: ISSW30-Volume 1
Publisher Springer
Publication Year 2017
Sub-type Other
DOI 10.1007/978-3-319-44866-4_8
Open Access Status Not yet assessed
ISBN 9783319462134
9783319462110
Editor Gabi Ben-Dor
Ozer Igra
Oren Sadot
Start page 827
End page 831
Total pages 5
Language eng
Abstract/Summary Radiative heating dominates forebody thermal loads on re-entry capsules travelling at superorbital speeds and has also recently been identified as a major component in afterbody heating. Although subjected to less severe heating, the afterbody heat shield is typically designed with a larger structural safety factor, limited by the fidelity of computational models used for the rapid flow expansion. To improve the understanding of afterbody flows, an experimental campaign was launched to interrogate the radiation from a rapidly expanding flow of 11.8 km/s air in the X2 expansion tunnel at the University of Queensland. Spectral measurements of the flow were successfully recorded from the ultraviolet to the near infrared, and two-dimensional images of atomic oxygen emission were also taken. The latter agreed well, in trend, with numerical simulations of the flow.
Keyword Radiative heating
Superorbital
Afterbody heat shield
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Tue, 27 Sep 2016, 11:06:58 EST by Han Wei on behalf of School of Mechanical and Mining Engineering