中文摘要：

针对由金属蜂窝夹心板和多层纤维绝热材料组成的金属热防护系统（Metallic Thermal Protection Sytems，MTPS）建立了气动加热条件下整体传热计算模型，采用蒙特卡罗方法模拟蜂窝腔内的三维辐射传递和每个纤维层内的一维辐射传递，采用有限体积法对MTPS一体化结构内辐射导热耦合换热能量方程进行求解，对某结构的MTPS瞬态传热及热响应进行了数值模拟分析，结果表明在所给定的典型时变气动热流条件下金属蜂窝夹芯板对MTPS瞬态热响应影响很小，增大蜂窝腔内表面发射率可明显降低蜂窝蒙皮间的温度差，再入过程中时变气体压力对MTPS瞬态热响应有明显的影响。

英文摘要：

A computational model for the combined radiation and conduction heat transfer processes in metallic thermal protection systems（ MTPS）, composed of a high-temperature metallic honeycomb sandwich panel and the underneath fibrous multilayer thermal insulation, under aerodynamic heating environment was presented. Monte Carlo method was used for the three-dimensional radiative transfer between honeycomb wall enclosures and for the one-dimensional radiative transfer process in each fibrous layer. The energy equation of coupled transfer processes in MTPS was solved by a finite volume method. The heat transfer characteristics and transient thermal responses of a MTPS with specified configurations were simulated and analysed numerically. Results show that metallic honey comb sandwich panels have little influences on MTPS thermal responses. The increase in emittance of honey-comb core results in significant decrease in temperature difference between the honeycomb surfaces. And finally the time-varying gas pressure has obvious influences on MTPS transient thermal responses.