caa a22 4500 463163036 CHVBK 20180406164753.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s11242-006-0023-y doi (NATIONALLICENCE)springer-10.1007/s11242-006-0023-y Flow of low pressure gas through dual-porosity media [Elektronische Daten] [J. Chastanet, P. Royer, J.-L. Auriault] Using the theory of homogenization we derive macroscopic models for describing flow of gas at low pressure in dual-porosity media. The case of a fractured porous medium is under consideration for the study, and the existence of a representative elementary volume that consists of open connected fractures surrounded by porous matrix blocks is assumed. The local flow is governed by either Klinkenberg's law or Knudsen's diffusion law in the matrix while either a non-slip flow or a slip flow occurs in the fractures. Six new models are derived by homogenization, which are compared to the three models which were obtained for Darcy's regime in an earlier work. Each of these nine models is characterized by its macroscopic flow regime and by the type of macroscopic behavior it describes. Besides Darcy's and Klinkenberg's macroscopic flow regimes, a transition regime between Klinkenberg's and Knudsen's regimes is identified. The types of macroscopic behaviors include a dual and a single porosity description and an intermediate behavior that describes a single-porosity behavior, but in which the porosity of the entire fractured porous medium is accounted for. Springer Science+Business Media B.V., 2007 Gas flow nationallicence Gas permeability nationallicence Klinkenberg's effect nationallicence Gas diffusion nationallicence Knudsen's diffusion nationallicence Fractured porous media nationallicence Dual-porosity nationallicence Continuum modeling nationallicence Homogenization nationallicence Chastanet J. Environmental Engineering, Oregon State University, 97331, Corvallis, OR, USA aut Royer P. Laboratoire "Sols, Solides, Structures”(3S), UJF, INPG, CNRS, BP 53, 38041, Grenoble Cedex, France aut Auriault J.-L Laboratoire "Sols, Solides, Structures”(3S), UJF, INPG, CNRS, BP 53, 38041, Grenoble Cedex, France aut Transport in Porous Media Kluwer Academic Publishers 66/3(2007-02-01), 457-479 0169-3913 66:3<457 2007 66 11242 https://doi.org/10.1007/s11242-006-0023-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11242-006-0023-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chastanet J. Environmental Engineering, Oregon State University, 97331, Corvallis, OR, USA aut NATIONALLICENCE 700 1- Royer P. Laboratoire "Sols, Solides, Structures”(3S), UJF, INPG, CNRS, BP 53, 38041, Grenoble Cedex, France aut NATIONALLICENCE 700 1- Auriault J.-L Laboratoire "Sols, Solides, Structures”(3S), UJF, INPG, CNRS, BP 53, 38041, Grenoble Cedex, France aut NATIONALLICENCE 773 0- Transport in Porous Media Kluwer Academic Publishers 66/3(2007-02-01), 457-479 0169-3913 66:3<457 2007 66 11242 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer