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Investigation on thermal performance of a high-temperature heat-pipe thermal protection structure

Xie, G. LU ; Ji, T.; Sunden, B. LU ; Qin, J. and Lorenzini, G. (2016) In Journal of Engineering Thermophysics 25(3). p.359-376
Abstract

Sharp leading edges with a millimeter-scale radius are required for hypersonic vehicles from aerodynamic reasons. However, with the leading edges being so sharp, stagnation regions at wing and tail leading edges suffer a hostile thermal environment. Therefore, a high-temperature heat pipe is considered to be integrated into the structure of the leading edge to reduce the temperature of the stagnation point. In this paper, a superalloy-refractory composite-container-“wall” combined with the wick and working fluid structure is proposed, which is proved to be a feasible design of a heat pipe for the semi-passive thermal protection system (TPS). The effects of different material of the exterior surface on the temperature distributions are... (More)

Sharp leading edges with a millimeter-scale radius are required for hypersonic vehicles from aerodynamic reasons. However, with the leading edges being so sharp, stagnation regions at wing and tail leading edges suffer a hostile thermal environment. Therefore, a high-temperature heat pipe is considered to be integrated into the structure of the leading edge to reduce the temperature of the stagnation point. In this paper, a superalloy-refractory composite-container-“wall” combined with the wick and working fluid structure is proposed, which is proved to be a feasible design of a heat pipe for the semi-passive thermal protection system (TPS). The effects of different material of the exterior surface on the temperature distributions are investigated. The effect of the half wedge angle, the design length and porosity of the wick is also investigated to find the effect of the geometry of the structure of the leading edge on the operation of the heat pipe.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Engineering Thermophysics
volume
25
issue
3
pages
18 pages
publisher
CSME
external identifiers
  • scopus:84983063649
  • wos:000384843200006
ISSN
1810-2328
DOI
10.1134/S1810232816030061
language
English
LU publication?
yes
id
fa7b20cd-e0d5-4979-8085-283946951070
date added to LUP
2017-01-18 09:28:56
date last changed
2017-09-18 11:32:16
@article{fa7b20cd-e0d5-4979-8085-283946951070,
  abstract     = {<p>Sharp leading edges with a millimeter-scale radius are required for hypersonic vehicles from aerodynamic reasons. However, with the leading edges being so sharp, stagnation regions at wing and tail leading edges suffer a hostile thermal environment. Therefore, a high-temperature heat pipe is considered to be integrated into the structure of the leading edge to reduce the temperature of the stagnation point. In this paper, a superalloy-refractory composite-container-“wall” combined with the wick and working fluid structure is proposed, which is proved to be a feasible design of a heat pipe for the semi-passive thermal protection system (TPS). The effects of different material of the exterior surface on the temperature distributions are investigated. The effect of the half wedge angle, the design length and porosity of the wick is also investigated to find the effect of the geometry of the structure of the leading edge on the operation of the heat pipe.</p>},
  author       = {Xie, G. and Ji, T. and Sunden, B. and Qin, J. and Lorenzini, G.},
  issn         = {1810-2328},
  language     = {eng},
  month        = {07},
  number       = {3},
  pages        = {359--376},
  publisher    = {CSME},
  series       = {Journal of Engineering Thermophysics},
  title        = {Investigation on thermal performance of a high-temperature heat-pipe thermal protection structure},
  url          = {http://dx.doi.org/10.1134/S1810232816030061},
  volume       = {25},
  year         = {2016},
}