Heat transfer in ultra-high temperature advanced ceramics under high enthalpy arc-jet conditions
Heat transfer in ultra-high temperature advanced ceramics under high enthalpy arc-jet conditions
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DOI：
10.1016/j.ijheatmasstransfer.2015.08.029
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发表时间：
2015-12
影响因子：
5.2
通讯作者：
A. Cecere;R. Savino;C. Allouis;F. Monteverde
中科院分区：
文献类型：
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作者：
A. Cecere;R. Savino;C. Allouis;F. Monteverde
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.
