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A Procedure to Evaluate the Thermal Response of a Multilayered Thermal Protection System Subjected to Aerodynamic Heating

[+] Author Affiliations
Michele Ferraiuolo, Aniello Riccio

CIRA scpa, Capua, Italy

Oronzio Manca

Seconda Università di Napoli, Aversa, Italy

Paper No. IMECE2009-12327, pp. 1-9; 9 pages
doi:10.1115/IMECE2009-12327
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4374-1 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

Next generation reusable re-entry vehicles must be capable of sustaining consistent repeated aero-thermal loads without damage or deterioration. This means that such structures must tolerate the high temperatures engendered by aero-thermal re-entry fluxes due to the establishment of a hypersonic regime over the body. Thermal Protection Systems (TPS) are used to maintain a reusable launch vehicle’s structural temperature within acceptable limits during re-entry flights; that is, internal temperature should not overcome the temperature limit use of the internal structure. TPS are usually composed by several layers made of different materials. Heat transfer through a multilayer insulation during atmospheric re-entry involves combined modes of heat transfer: heat conduction through the solid, heat radiation to the outer space etc. In the frame of TPS design activities a procedure based on one dimensional analytical solutions of transient nonlinear analyses has been developed in order to estimate the temperature variation with time and space of a multilayered body subjected to aerodynamic heating inside a radiating space. Since internal temperature values of TPSs of re-entry vehicles cannot exceed certain values, that procedure allows to quickly evaluate those temperature values and to preliminary size layer thicknesses before preparing and performing Finite Element analyses.

Copyright © 2009 by ASME
Topics: Heating

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