- Modeling Wicking in Deformable Porous Media Using Mixture Theory

2012 ◽  
pp. 308-339
2017 ◽  
Vol 7 (9) ◽  
pp. 917 ◽  
Author(s):  
Javed Siddique ◽  
Aftab Ahmed ◽  
Asim Aziz ◽  
Chaudry Khalique

2008 ◽  
Vol 41 (15) ◽  
pp. 3152-3157 ◽  
Author(s):  
Michael B. Albro ◽  
Nadeen O. Chahine ◽  
Roland Li ◽  
Keith Yeager ◽  
Clark T. Hung ◽  
...  

2015 ◽  
Vol 3 ◽  
Author(s):  
Fredrik K. Eriksen ◽  
Renaud Toussaint ◽  
Knut J. Måløy ◽  
Eirik G. Flekkøy

2021 ◽  
Vol 33 (6) ◽  
pp. 2279-2300
Author(s):  
Bettina Detmann

AbstractFirst, different porous media theories are presented. Some approaches are based on the classical mixture theory for fluids introduced in the 1960s by Truesdell and Coworkers. One of the first researchers who extended the theory to porous media (thus mixtures containing at least one solid constituent) and also accounting for chemical reactions was Bowen. Another important branch of porous media theory goes back to Biot. In the beginning, he dealt with classical geotechnical problems and set up his model empirically. Mathematicians often use reaction–diffusion equations which are limited in comparison with continuum models by several restrictive assumptions and very often only applicable to special problems. In this paper, the focus lies on approaches based on the mixture theory which incorporate chemical reactions. Different strategies to describe the chemical potential for mixtures are presented, and different opinions about the exploitation of the second law of thermodynamics for mixtures are put forward. Finally, several works of different types including chemical reactions in porous media are summarized.


1998 ◽  
Vol 35 (34-35) ◽  
pp. 4619-4635 ◽  
Author(s):  
Olivier Coussy ◽  
Luc Dormieux ◽  
Emmanuel Detournay
Keyword(s):  

1986 ◽  
Vol 85 ◽  
Author(s):  
A. Ambari ◽  
B. Gauthier-Manuel ◽  
E. Guyon

ABSTRACTKnowledge of the evolution of the permeability of cement throughout the course of hydration provides a suitable means to evaluate the evolution of the pore structure. The main difficulty is to measure permeability without disturbing the tenuous structure of the material at the beginning of the hydration. We have developed a differential permeability technique in which the applied flow is sufficiently weak that the structure of the medium is not disturbed. As an example of application of this technique we present measurement of the evolution of the critical permeability during a sol-gel transition.


Author(s):  
Hisham Elsafti ◽  
Hocine Oumeraci

In this study, the fully-coupled and fully-dynamic Biot governing equations in the open-source geotechFoam solver are extended to account for pore fluid viscous stresses. Additionally, turbulent pore fluid flow in deformable porous media is modeled by means of the conventional eddy viscosity concept without the need to resolve all turbulence scales. A new approach is presented to account for porous media resistance to flow (solid-to-fluid coupling) by means of an effective viscosity, which accounts for tortuosity, grain shape and local turbulences induced by flow through porous media. The new model is compared to an implemented extended Darcy-Forchheimer model in the Navier-Stokes equations, which accounts for laminar, transitional, turbulent and transient flow regimes. Further, to account for skeleton deformation, the porosity and other model parameters are updated with regard to strain of geomaterials. The presented model is calibrated by means of available results of physical experiments of unidirectional and oscillatory flows.


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