Effective thermal conductivity of two-scale porous media

被引：10
|
作者：
Zhang, H-F. [1 ]
Ge, X-S. [1 ]
Ye, H. [1 ]
机构：
[1] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 08期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.2337274
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A two-scale model is developed for predicting the effective thermal conductivity of porous media. To account for the effects of the microstructure on the macroscopic conductivity, predictions from the one- and two-scale models are comparatively investigated. The results show that the microstructure can strongly affect the macroscopic conductivity, and the degree of the effects is related to the total porosity and the conductivity ratio of the components.
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页数：3
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