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DY: Fachverband Dynamik und Statistische Physik

DY 29: Posters II

DY 29.42: Poster

Donnerstag, 29. März 2012, 17:00–19:00, Poster A

Quantitative validation of multi-scale modelling of porous media — •Andreas Lemmer and Rudolf Hilfer — Institut für Computerphysik, Universität Stuttgart, 70569 Stuttgart, Deutschland

Flow and transport through geological, biological and industrial porous media typically involve multiple length and/or time scales. Controlled approximations with quantitative error indicators on different scales are necessary to develop multi-scale models from single-scale approaches and to verify them. Based on a continuum model for porous media, we discretize three-dimensional images of a synthetic sample of a Fontainebleau sandstone with side length 1.5 cm at resolutions covering three decades from 117 µm down to 458 nm [1]. Calculating and analyzing geometric and transport parameters at different resolutions allow quantitative validation of different theoretical approaches and comparison with experiment.

[1] R. Hilfer and T. Zauner: High precision synthetic computed tomography of reconstructed porous media, Physcial Review E, in print (2011)