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Article Dans Une Revue Studia Geotechnica et Mechanica Année : 1992

Very Compressible Fluid Flow through a Porous Medium with Double Porosity

Résumé

We investigate the macroscopic quasi-static description of a porous rigid medium with a double porosity constituted by pores and fractures. We use an homogenization method which allows the macroscopic modelling from the description at the pore and the fracture scales. The macroscopic description is strongly dependent upon the ratios between the different scales l/l' and l'/l" where l, l', l" are characteristic lengths for the pores, the fractures and the macroscopic medium, respectively. We investigate here the case: l'/f' =0((l/l')² ). The macroscopic description whlch is obtained is a mass balance equation with a classical Darcy's law. The interest of the investigation lies in the source term that highlights the role of a compressible fluid reservoir played by the microporous medium.
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hal-01713431 , version 1 (20-02-2018)

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  • HAL Id : hal-01713431 , version 1

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Pascale Royer, Jean-Louis Auriault. Very Compressible Fluid Flow through a Porous Medium with Double Porosity. Studia Geotechnica et Mechanica, 1992, 13 (1-2), pp.65-77. ⟨hal-01713431⟩

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