The stagnant thermal conductivity of porous media predicted by the random walk theory

The model developed in this study is a powerful tool to predict stagnant thermal conductivity of porous media widely applied in a broad range of science and engineering disciplines. The low computational time of this model makes it a unique tool to provide real-time updates of material properties for on-site applications or other computational models. Furthermore, the solid matrix and the filling fluid in the porous medium could be multi-phase mixtures or composite materials due to the statistical nature of the random walk model.