Stochastic reconstruction of sandstones

Journal Article · Sat Jul 01 04:00:00 EDT 2000 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.62.893· OSTI ID:20217097

Manwart, C ^[1]; Torquato, S ^[2]; Hilfer, R ^[1]

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1. Institut fuer Computeranwendungen 1, Universitaet Stuttgart, 70569 Stuttgart, (Germany)
2. Department of Chemistry and Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544 (United States)

A simulated annealing algorithm is employed to generate a stochastic model for a Berea sandstone and a Fontainebleau sandstone, with each a 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. (c) 2000 The American Physical Society.

• OSTI ID: 20217097
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 1 Vol. 62; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNEALING
POROSITY
POROUS MATERIALS
SANDSTONES
STOCHASTIC PROCESSES
THEORETICAL DATA