Physics – Fluid Dynamics
Scientific paper
2010-05-14
Journal of Statistical Mechanics: theory and experiment, P11026 (2010)
Physics
Fluid Dynamics
14 pages, 11 figures
Scientific paper
10.1088/1742-5468/2010/11/P11026
During the last decade, lattice-Boltzmann (LB) simulations have been improved to become an efficient tool for determining the permeability of porous media samples. However, well known improvements of the original algorithm are often not implemented. These include for example multirelaxation time schemes or improved boundary conditions, as well as different possibilities to impose a pressure gradient. This paper shows that a significant difference of the calculated permeabilities can be found unless one uses a carefully selected setup. We present a detailed discussion of possible simulation setups and quantitative studies of the influence of simulation parameters. We illustrate our results by applying the algorithm to a Fontainebleau sandstone and by comparing our benchmark studies to other numerical permeability measurements in the literature.
Harting Jens
Hilfer Rudolf
Narváez Ariel
Raischel Frank
Zauner Thomas
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