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Journal of Porous Media
Импакт фактор: 1.752 5-летний Импакт фактор: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 23, 2020 Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v17.i9.60
pages 819-830

PREDICTION OF THE EFFECTIVE PERMEABILITY COEFFICIENT IN RANDOM POROUS MEDIA USING THE FINITE ELEMENT METHOD

Soufiane Belhouideg
Polydisciplinary Faculty ‐ Sultan Moulay Slimane University
Manuel Lagache
Laboratoire SYMME, Universite de Savoie, BP 80439 F74944 Annecy le Vieux Cedex, France

Краткое описание

The aim of this study is to develop a comprehensive computational fluid dynamics (CFD)-based model for predicting the effective permeability coefficient of porous media as compacted exfoliated clays (CECs). Indeed, compacted exfoliated clays represent an interesting alternative to asbestos or compacted exfoliated graphite for high-temperature and high-pressure sealing applications. The microstructure of the CEC samples was characterized by using a scanning electronic microscope (SEM) and the permeability was evaluated by applying, at direct pore level, a finite element simulation via ANSYS software. The permeability coefficients determined with the proposed approach are compared to the values predicted by some porous media flow models, namely, conduit flow, hydraulic radius theory, and drag models. Then the relation between the microstructure of the porous media and the effective permeability was established with two parametric analyses. The relationship obtained between the macroscopic permeability and porosity volume ratio was strongly nonlinear and anisotropic for the compacted clays studied. Furthermore, the influence of the porosity shape on the permeability is highlighted.

Ключевые слова: porous media, finite element method, permeability, clay

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