Numerical study of the transient characteristics of ablative hypersonic flow fields

dc.contributor.authorZeng, M.
dc.contributor.authorLiu, J.
dc.contributor.authorXu, D.
dc.contributor.authorZhang, W.
dc.date.accessioned2015-04-24T06:10:15Z
dc.date.available2015-04-24T06:10:15Z
dc.date.issued2014
dc.description.abstractPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.en_ZA
dc.description.abstractThe 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.librariancf2015en_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationZeng, 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.isbn97817759206873
dc.identifier.urihttp://hdl.handle.net/2263/44676
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_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.subjectHypersonic flow fieldsen_ZA
dc.subjectGraphite ablationen_ZA
dc.subjectTransient characteristicsen_ZA
dc.subjectThermal non-equilibriumen_ZA
dc.subjectTwo-temperature modelen_ZA
dc.subjectShield temperature distributionen_ZA
dc.subjectFlow field propertiesen_ZA
dc.titleNumerical study of the transient characteristics of ablative hypersonic flow fieldsen_ZA
dc.typePresentationen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Zeng_Numerical_2014.pdf
Size:
641.33 KB
Format:
Adobe Portable Document Format
Description:
Presentation

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: