Effective thermal conductivity of two-scale porous media
H.-F. Zhang, Xiaoqin Ge, H. Ye · Applied Physics Letters · 2006
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.