Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: March 10, 2009
Publication Date: June 15, 2009
Citation: Schaap, M.G., Tuller, M., Guber, A.K., Pachepsky, Y.A. 2009. Lattice Boltzmann Modeling of Macro-Porous Flow: Effects of Image Segmentation Algorithms and Comparisons with Observed Data. SIAM Conference on Mathematical and Computational Issues in the Geosciences (GS09), June 15-18, 2009, Leipzig, Germany. Society for Industrial and Applied Mathematics, Philadelphia, PA. P. 102. Avaiiable at http://www.siam.org/meetings/gs09abstracts.pdf, last accessed on 09/16/2009.
In this presentation we simulate saturated flow through macroporous soil columns (7.62x18 cm) with a lattice Boltzmann model and compare results with measured saturated hydraulic conductivities. Porous geometry was obtained with an industrial CT scanner yielding a resolution of 119 microns (656x656x1482 voxels) and processed with several segmentation algorithms to generate pore solid classifications from gray-scale data. In this presentation we will define the optimal resolution and discuss the merits of selected segmentation algorithms.