Digitally reconstructed porous media: Transport and sorption properties

Kainourgiakis, ME; Kikkinides, ES; Galani, A; Charalambopoulou, GC; Stubos, AK

dc.contributor.author	Kainourgiakis, ME	en
dc.contributor.author	Kikkinides, ES	en
dc.contributor.author	Galani, A	en
dc.contributor.author	Charalambopoulou, GC	en
dc.contributor.author	Stubos, AK	en
dc.date.accessioned	2014-03-01T01:22:12Z
dc.date.available	2014-03-01T01:22:12Z
dc.date.issued	2005	en
dc.identifier.issn	0169-3913	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16483
dc.subject	Adsorption	en
dc.subject	Diffusion	en
dc.subject	Permeability	en
dc.subject	Reconstruction	en
dc.subject	Simulated annealing	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Adsorption	en
dc.subject.other	Algorithms	en
dc.subject.other	Annealing	en
dc.subject.other	Computer simulation	en
dc.subject.other	Diffusion	en
dc.subject.other	Interfacial energy	en
dc.subject.other	Mechanical permeability	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Random processes	en
dc.subject.other	Transport properties	en
dc.subject.other	Knudsen diffusivity	en
dc.subject.other	Molecular diffusivity	en
dc.subject.other	Spatial distributions	en
dc.subject.other	Vycor glass	en
dc.subject.other	Porous materials	en
dc.subject.other	diffusion	en
dc.subject.other	permeability	en
dc.subject.other	porous medium	en
dc.subject.other	simulated annealing	en
dc.subject.other	solute transport	en
dc.subject.other	diffusion	en
dc.subject.other	permeability	en
dc.subject.other	porous medium	en
dc.subject.other	simulated annealing	en
dc.subject.other	solute transport	en
dc.title	Digitally reconstructed porous media: Transport and sorption properties	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11242-004-5469-1	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11242-004-5469-1	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The basic aim of this work is to present a combination of techniques for the reconstruction of the porous structure and the study of transport properties in porous media. The disordered structure of porous systems like random sphere packing, Vycor glass and North Sea chalk, is represented by three-dimensional binary images. The random sphere pack is generated by a standard ballistic deposition procedure, while the chalk and the Vycor matrices by a stochastic reconstruction technique. The transport properties (Knudsen diffusivity, molecular diffusivity and permeability) of the resulting 3-dimensional binary domains are investigated through computer simulations. Furthermore, physically sound spatial distributions of two phases filling the pore space are determined by the use of a simulated annealing algorithm. The wetting and the non-wetting phases are initially randomly distributed in the pore space and trial-and-error swaps are performed in order to attain the global minimum of the total interfacial energy. The effective diffusivities of the resulting domains are then computed and a parametric study with respect to the pore volume fraction occupied by each phase is performed. Reasonable agreement with available data is obtained in the single- and multi-phase transport cases. © Springer 2005.	en
heal.publisher	SPRINGER	en
heal.journalName	Transport in Porous Media	en
dc.identifier.doi	10.1007/s11242-004-5469-1	en
dc.identifier.isi	ISI:000226900100004	en
dc.identifier.volume	58	en
dc.identifier.issue	1-2	en
dc.identifier.spage	43	en
dc.identifier.epage	62	en