Investigation of the effective permeability of vuggy or fractured porous media from a Darcy-Brinkman approach
Langue
en
Article de revue
Ce document a été publié dans
Computational Geosciences. 2015-02, vol. 19, n° 1, p. 63-78
Springer Verlag
Résumé en anglais
In this paper, the macroscopic representation of one-phase incompressible flow in fractured and cavity (or vuggy) porous media is studied from theoretical and numerical points of view. A single-domain (or equivalently a ...Lire la suite >
In this paper, the macroscopic representation of one-phase incompressible flow in fractured and cavity (or vuggy) porous media is studied from theoretical and numerical points of view. A single-domain (or equivalently a Darcy-Brinkman) type of approach is followed to describe the momentum transport at Darcy scale where the fracture or cavity region and porous matrix region are well identified. The Darcy scale model is upscaled yielding a macroscopic momentum equation operating on the equivalent homogeneous medium. Numerical solution to the associated closure problem is proposed in order to compute the effective permeability. Numerical results on some model fractured and cavity media are discussed and compared to some analytical results.< Réduire
Mots clés en anglais
Vugular rocks
Fractured porous medium
Darcy-Brinkman
Volume averaging
Effective permeability
Origine
Importé de halUnités de recherche