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Investigation on thermal performance of high temperature multilayer insulations for hypersonic vehicles under aerodynamic heating condition

Ji, Tingwu; Zhang, Ruiping; Sundén, Bengt LU and Xie, Gongnan (2014) In Applied Thermal Engineering 70(1). p.957-965
Abstract
Hypersonic vehicles have to withstand extremely high aerodynamic heating and pressure loads during the ascent and reentry stages. Multilayer thermal insulations have been widely designed in thermal protection systems to keep the temperature of underlying structure within an acceptable limit. In this study, a theoretical model is built combining radiation and conduction heat transfer in high temperature multilayer insulations under aerodynamic heating conditions. After a reliable validation with previous references, the effects of the layout, the number and the location of the foils, the density of insulation materials and the emissivity of the surface of foils on the insulation performance of multilayer thermal insulations are... (More)
Hypersonic vehicles have to withstand extremely high aerodynamic heating and pressure loads during the ascent and reentry stages. Multilayer thermal insulations have been widely designed in thermal protection systems to keep the temperature of underlying structure within an acceptable limit. In this study, a theoretical model is built combining radiation and conduction heat transfer in high temperature multilayer insulations under aerodynamic heating conditions. After a reliable validation with previous references, the effects of the layout, the number and the location of the foils, the density of insulation materials and the emissivity of the surface of foils on the insulation performance of multilayer thermal insulations are investigated, respectively. It is found that there exists an optimal number of insulation layers for best thermal performance and the layout of radiation foils has no evident effect. In addition, the insulation performance is much better when the foils are near the cold boundary, and when the density of insulation material and the emissivity of the surface of foils are higher, the temperature of bottom surface is lower. (C) 2014 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Multilayer insulations, Aerodynamic heating, The number of layers, Layout, Temperature
in
Applied Thermal Engineering
volume
70
issue
1
pages
957 - 965
publisher
Elsevier
external identifiers
  • wos:000341464400100
  • scopus:84903830926
ISSN
1359-4311
DOI
10.1016/j.applthermaleng.2014.06.014
language
English
LU publication?
yes
id
8bcc4698-49f3-4714-8b91-3f596f071468 (old id 4713148)
date added to LUP
2014-10-27 11:03:35
date last changed
2017-07-30 03:11:59
@article{8bcc4698-49f3-4714-8b91-3f596f071468,
  abstract     = {Hypersonic vehicles have to withstand extremely high aerodynamic heating and pressure loads during the ascent and reentry stages. Multilayer thermal insulations have been widely designed in thermal protection systems to keep the temperature of underlying structure within an acceptable limit. In this study, a theoretical model is built combining radiation and conduction heat transfer in high temperature multilayer insulations under aerodynamic heating conditions. After a reliable validation with previous references, the effects of the layout, the number and the location of the foils, the density of insulation materials and the emissivity of the surface of foils on the insulation performance of multilayer thermal insulations are investigated, respectively. It is found that there exists an optimal number of insulation layers for best thermal performance and the layout of radiation foils has no evident effect. In addition, the insulation performance is much better when the foils are near the cold boundary, and when the density of insulation material and the emissivity of the surface of foils are higher, the temperature of bottom surface is lower. (C) 2014 Elsevier Ltd. All rights reserved.},
  author       = {Ji, Tingwu and Zhang, Ruiping and Sundén, Bengt and Xie, Gongnan},
  issn         = {1359-4311},
  keyword      = {Multilayer insulations,Aerodynamic heating,The number of layers,Layout,Temperature},
  language     = {eng},
  number       = {1},
  pages        = {957--965},
  publisher    = {Elsevier},
  series       = {Applied Thermal Engineering},
  title        = {Investigation on thermal performance of high temperature multilayer insulations for hypersonic vehicles under aerodynamic heating condition},
  url          = {http://dx.doi.org/10.1016/j.applthermaleng.2014.06.014},
  volume       = {70},
  year         = {2014},
}