Numerical study of the transient characteristics of ablative hypersonic flow fields

Zeng, M.; Liu, J.; Xu, D.; Zhang, W.

dc.contributor.author	Zeng, M.
dc.contributor.author	Liu, J.
dc.contributor.author	Xu, D.
dc.contributor.author	Zhang, W.
dc.date.accessioned	2015-04-24T06:10:15Z
dc.date.available	2015-04-24T06:10:15Z
dc.date.issued	2014
dc.description.abstract	Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.	en_ZA
dc.description.abstract	The transient characteristics of the reentry flow field with graphite ablation are investigated through numerical simulation. The governing equations for the flow field are Navier-Stokes equations with thermo-chemical non-equilibrium, and that for the heat-shield is the unsteady heat equation. 16-species are considered, thermal non-equilibrium and the coupling of vibration and chemical reactions are described with the two-temperature model. The simulation is performed on a sphere with radius of 1m at a free-stream speed of 10km/s and an altitude of 65km, where the thickness of the heat shield is set to 0.05m, 0.1m, and 0.2m, respectively. The analyses are conducted about not only the time evolutions of the flow field properties and the shield temperature distribution, but also the effects of the shield thickness on them.	en_ZA
dc.description.librarian	cf2015	en_ZA
dc.format.medium	PDF	en_ZA
dc.identifier.citation	Zeng, M, Liu, J, Xu, D, Zhang, W 2014, 'Numerical study of the transient characteristics of ablative hypersonic flow fields', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.	en_ZA
dc.identifier.isbn	97817759206873
dc.identifier.uri	http://hdl.handle.net/2263/44676
dc.publisher	International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics	en_ZA
dc.rights	© 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.	en_ZA
dc.subject	Hypersonic flow fields	en_ZA
dc.subject	Graphite ablation	en_ZA
dc.subject	Transient characteristics	en_ZA
dc.subject	Thermal non-equilibrium	en_ZA
dc.subject	Two-temperature model	en_ZA
dc.subject	Shield temperature distribution	en_ZA
dc.subject	Flow field properties	en_ZA
dc.title	Numerical study of the transient characteristics of ablative hypersonic flow fields	en_ZA
dc.type	Presentation	en_ZA