Stochastic reconstruction of sandstones
Abstract
A simulated annealing algorithm is employed to generate a stochastic model for a Berea and a Fontainebleau sandstone with prescribed two-point probability function, lineal path function, and ``pore size'' distribution function, respectively. We find that the temperature decrease of the annealing has to be rather quick to yield isotropic and percolating configurations. A comparison of simple morphological quantities indicates good agreement between the reconstructions and the original sandstones. Also, the mean survival time of a random walker in the pore space is reproduced with good accuracy. However, a more detailed investigation by means of local porosity theory shows that there may be significant differences of the geometrical connectivity between the reconstructed and the experimental samples.
Keywords
Cite
@article{arxiv.cond-mat/0007459,
title = {Stochastic reconstruction of sandstones},
author = {C. Manwart and S. Torquato and R. Hilfer},
journal= {arXiv preprint arXiv:cond-mat/0007459},
year = {2009}
}
Comments
12 pages, 5 figures