防热层材料在旋转加热作用下的温度滞后现象研究  

THE TEMPERATURE DISTRIBUTION OF THERMAL PROTECTION LAYER UNDER AN ACTERNATION HEAT FLUX

作　　者：桂业伟[1] 宁勇[1] 贺立新[1] 

机构地区：[1]中国空气动力研究与发展中心总体技术部,四川绵阳621000

出　　处：《工程热物理学报》1999年第2期224-227,共4页Journal of Engineering Thermophysics

摘　　要：When a vehicle with rotation reenters the atmosphere in an angle of attack, it will experience an alternating heat flux on the upper surface of the thermal protection farer. Andthe position of maximum temperature on the surface is not coincident with that of maximum heat flux, which is called thermal retardation. In this paper, the thermal retardationphenomena of the thermal protection layer under an alternating heat flux are numericallysimulated. The effects of many factors, such as the time of heating, the angular velocity ofthe rotation and the properties of thermal protection material, are researched on the thermalretardation. Which is useful to the design of thermal protection layer of vehicle.When a vehicle with rotation reenters the atmosphere in an angle of attack, it will experience an alternating heat flux on the upper surface of the thermal protection farer. Andthe position of maximum temperature on the surface is not coincident with that of maximum heat flux, which is called thermal retardation. In this paper, the thermal retardationphenomena of the thermal protection layer under an alternating heat flux are numericallysimulated. The effects of many factors, such as the time of heating, the angular velocity ofthe rotation and the properties of thermal protection material, are researched on the thermalretardation. Which is useful to the design of thermal protection layer of vehicle.

关 键 词：防热层 旋转加热 数值计算 温度滞后 航天器 

分 类 号：TK121[动力工程及工程热物理—工程热物理] V419.9[动力工程及工程热物理—热能工程]