3D simulation of the permeability tensor in a soil aggregate on basis of nanotomographic imaging and LBE solver |
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Authors: | Faisal Khan Frieder Enzmann Michael Kersten Andreas Wiegmann Konrad Steiner |
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Institution: | (1) Earth Systems Research Center, Institute of Geosciences, Johannes Gutenberg University, 55099 Mainz, Germany;(2) Fraunhofer-ITWM, Fraunhofer-Platz 1, 67663 Kaiserslautern, Germany; |
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Abstract: | Purpose The purpose of this hydropedological work is to investigate the feasibility of a method to calculate permeability of soil
peds on the matrix pore scale resolution. This paper focuses on imaging of the intra-aggregate microstructure and, based on
the three-dimensional (3D) images, quantification of the pore network connectivity and permeability tensor. Finally, lattice
Boltzmann equation (LBE) simulations of Navier–Stokes flow in the thus derived pore network allow to compute the heterogeneous
3D flow velocity field. |
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Keywords: | |
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