Experimental expansion tube study of the flow over a toroidal ballute

McIntyre, T. J., Lourel, I., Eichmann, T. N., Morgan, R. G., Jacobs, P. A. and Bishop, A. I. (2004) Experimental expansion tube study of the flow over a toroidal ballute. Journal of Spacecraft And Rockets, 41 5: 716-725. doi:10.2514/1.13104


Author McIntyre, T. J.
Lourel, I.
Eichmann, T. N.
Morgan, R. G.
Jacobs, P. A.
Bishop, A. I.
Title Experimental expansion tube study of the flow over a toroidal ballute
Journal name Journal of Spacecraft And Rockets   Check publisher's open access policy
ISSN 0022-4650
Publication date 2004-01-01
Year available 2004
Sub-type Article (original research)
DOI 10.2514/1.13104
Open Access Status Not yet assessed
Volume 41
Issue 5
Start page 716
End page 725
Total pages 10
Editor E Vincent Zoby
Amanda Maguire
Place of publication USA
Publisher Norma Brennan
Language eng
Subject C1
290200 Aerospace Engineering
671104 Aerospace equipment
Abstract An experimental investigation of high-enthalpy flow over a toroidal ballute (balloon/parachute) was conducted in an expansion tube facility. The ballute, proposed for use in a number of future aerocapture missions, involves the deployment of a large toroidal-shaped inflatable parachute behind a space vehicle to generate drag on passing through a planetary atmosphere, thus, placing the spacecraft in orbit. A configuration consisting of a spherical spacecraft, followed by a toroid, was tested in a superorbital facility. Measurements at moderate-enthalpy conditions (15-20 MJ/kg) in nitrogen and carbon dioxide showed peak heat transfer rates of around 20 MW/m(2) on the toroid. At higher enthalpies (>50 MJ/kg) in nitrogen, carbon dioxide, and a hydrogen-neon mixture, heat transfer rates above 100 MW/m(2) were observed. Imaging using near-resonant holographic interferometry showed that the flows were steady except when the opening of the toroid was blocked.
Keyword Engineering, Aerospace
Interferometry
Q-Index Code C1
Institutional Status UQ

 
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Created: Wed, 15 Aug 2007, 15:12:36 EST