Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
808614 | Theoretical and Applied Mechanics Letters | 2013 | 18999 Pages |
Abstract
An alternate yet general form of the classical effective thermal conductivity model (Maxwell model) for two-phase porous materials is presented, serving an explicit thermo-physical basis. It is demonstrated that the reduced effective thermal conductivity of the porous media due to non-conducting pore inclusions is caused by the mechanism of thermal stretching, which is a combination of reduced effective heat flow area and elongated heat transfer distance (thermal tortuosity).
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