Heat transfer in ultra-high temperature advanced ceramics under high enthalpy arc-jet conditions

2015-12-01
Cecere, Anselmo
Savino, Raffaele
Allouis, Christophe Gerard
Monteverde, Frederic
Aim of this work is to analyze the response of an ultra-high temperature ceramic at typical heat flux conditions of thermal protection systems of a re-entry spacecraft. In particular, a ZrB2-SiC based ultra-high temperature advanced ceramic sharp leading edge demonstrator (1 mm nominal radius of curvature) was manufactured and tested in a non-equilibrium high enthalpy supersonic airflow, 20 MJ/kg of peak total enthalpy, by using an arc-jet ground facility. The surface temperature of the leading edge was monitored by infrared thermo-cameras coupled to a two-color pyrometer. The ultra-refractory advanced ceramic leading edge withstood stressful thermo-chemical loads successfully, without obvious failure. Ad-hoc computational fluid dynamics simulations rebuilt the adopted set-up and related experiment conditions: the numerical outputs matched fairly well the experimental in-situ determinations. (C) 2015 Elsevier Ltd. All rights reserved.
Citation Formats
A. Cecere, R. Savino, C. G. Allouis, and F. Monteverde, “Heat transfer in ultra-high temperature advanced ceramics under high enthalpy arc-jet conditions,” pp. 747–755, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89866.