Pore Structure and Effective Permeability of Metallic Filters

0380640 - ÚCHP 2013 HU eng C - Konferenční příspěvek (zahraniční konf.)
Hejtmánek, Vladimír - Čapek, P. - Veselý, M.
Pore Structure and Effective Permeability of Metallic Filters.
Abstracts Book. Tampa: NANOSMAT, 2012 - (Chipara, M.; Haynie, D.; Stanishevsky, A.), 229* ISBN N.
[International Conference on Mathematical Modeling in Physical Sciences IC-MSQUARE 2012. Budapest (HU), 03.09.2012-07.09.2012]
Grant CEP: GA ČR(CZ) GAP204/11/1206
Institucionální podpora: RVO:67985858
Klíčová slova: porous media * stochastic reconstruction * effective permeability
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie

The microstructures of two metallic filters were reconstructed using a stochastic reconstruction method based on simulated annealing. The following microstructural descriptors were included in the description of the real microstructures: the two-point probability function, the lineal-path functions for the void and solid phases, i.e. simulated annealing was constrained by all low-order statistical measures that were accessible through the analysis of images of polished sections. The void phase created one large cluster and a few small clusters representing the isolated porosity. Effective permeability of the replicas was estimated by solving the Stokes equation for creeping flow of an incompressible liquid in pore space. Calculated permeability values matched well their experimental counterparts.
Trvalý link: http://hdl.handle.net/11104/0211295