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高超飞行器天线罩需要承载长时间高热流的气动加热,透波材料的辐射传热效应显著增强,传统的工程纯导热计算方法已不再适用。本文研究了高超飞行器天线罩的耦合传热过程,针对多层天线罩结构建立了辐射/导热耦合计算方法,并进行了电弧风洞试验验证,吻合度较高。为便于工程应用,引入一种可快速判断热辐射影响程度的判据,可通过判据数值确定合适的评估方法,提高了工程评估的效率与精度。该研究成果可推广至多孔隔热材料以及陶瓷材料的温度评估,具有较高的工程应用价值。
Expensive aircraft radomes need to carry a long time high heat flow aerodynamic heating, transparent material through the radiation heat transfer effect is significantly enhanced, the traditional engineering methods of pure thermal conductivity is no longer applicable. In this paper, the coupling heat transfer process of a high-flying aircraft radome is studied. A radiative / thermal coupling calculation method is established for the multilayer radome structure. The wind tunnel test is conducted to verify that the agreement is high. In order to facilitate the application of engineering, a criterion for judging the influence degree of thermal radiation can be quickly introduced, and the appropriate evaluation method can be determined by the criterion value to improve the efficiency and accuracy of project evaluation. The research results can be extended to the porous thermal insulation materials and ceramic materials, temperature evaluation, with high engineering value.