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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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 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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Northwestern Polytechnical University
  • University of Parma
  • Harbin Institute of Technology
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Energiteknik
Originalspråkengelska
Sidor (från-till)359-376
Antal sidor18
TidskriftJournal of Engineering Thermophysics
Volym25
Utgåva nummer3
StatusPublished - 2016 jul 1
PublikationskategoriForskning
Peer review utfördJa