Effects of contact resistance on thermal conductivity of composite media with a periodic structure
Effects of contact resistance on thermal conductivity of composite media with a periodic structure
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DOI：
10.1088/0022-3727/25/2/018
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发表时间：
1992-02
期刊：
影响因子：
--
通讯作者：
G. Gu;Zen-rong Liu
中科院分区：
文献类型：
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作者：
G. Gu;Zen-rong Liu
讨论了均匀基体中嵌入球形或圆柱形夹杂物的周期性复合介质的热导率。使用格林函数，我们表明瑞利恒等式可以推广到处理这些系统的热特性。提出了一种新的复合介质有效电导率计算方法。推导了有效导热率的有用公式，并解释了接触电阻在工程问题中的含义。
The thermal conductivity of periodic composite media with spherical or cylindrical inclusions embedded in a homogeneous matrix is discussed. Using Green functions, we show that the Rayleigh identity can be generalized to deal with thermal properties ot these systems. A new calculating method for effective conductivity of composite media is proposed. Useful formulae for effective thermal conductivity are derived, and meanings of contact resistance in engineering problems are explained.