摘要
对固体界面热传导的机理进行研究,建立理论模型。依据稳态热流法独立设计出一套界面热传导系数的测量装置,用其测量铝合金ZL205A在不同界面温度、界面载荷、表面粗糙度下的界面热传导系数,研究这些因素对界面热传导系数的影响规律。试验结果对比表明,本文的理论模型比Yovanovich和Mikic的理论模型有更高的精度。
The mechanism of interface heat conduction was researched and a theoretical model was established in this paper. An experimental system for measuring thermal contact conductance （TCC） was designed based on steady-state heat-flux method. The TCC of ZL205A was measured under different contact pressures, different interracial temperatures, and different surface roughness. The correlation between these conditions and TCC was studied. The theoretical resolution of TCC was compared with the experimental measurement, the result of which suggests that the theoretical model in this paper had a better accuracy than theoretical models of Yovanovich and Mikic.
出处
《导弹与航天运载技术》
北大核心
2013年第2期16-19,40,共5页
Missiles and Space Vehicles
关键词
热传导
理论模型
粗糙表面
接触热传导系数
Heat conduction
Theoretical model
Rough surface
Thermal contact conductance （TCC）
