Coupling compositional liquid gas Darcy and free gas flows at porous and free-flow domains interface

Journal Article · Thu Sep 15 00:00:00 EDT 2016 · Journal of Computational Physics

DOI:https://doi.org/10.1016/J.JCP.2016.06.003· OSTI ID:22572355

Masson, R., E-mail: [e-mail] ^[1]; Team COFFEE INRIA Sophia Antipolis Méditerranée ^[2]; Trenty, L., E-mail: [e-mail] ^[3]; Zhang, Y., E-mail: [e-mail] ^[1]; Team COFFEE INRIA Sophia Antipolis Méditerranée ^[2]

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1. LJAD, University Nice Sophia Antipolis, CNRS UMR 7351 (France)
2. (France)
3. Andra, Chatenay Malabry (France)

This paper proposes an efficient splitting algorithm to solve coupled liquid gas Darcy and free gas flows at the interface between a porous medium and a free-flow domain. This model is compared to the reduced model introduced in [6] using a 1D approximation of the gas free flow. For that purpose, the gas molar fraction diffusive flux at the interface in the free-flow domain is approximated by a two point flux approximation based on a low-frequency diagonal approximation of a Steklov–Poincaré type operator. The splitting algorithm and the reduced model are applied in particular to the modelling of the mass exchanges at the interface between the storage and the ventilation galleries in radioactive waste deposits.

• OSTI ID: 22572355
• Journal Information: Journal of Computational Physics, Vol. 321; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9991
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALGORITHMS
APPROXIMATIONS
GAS FLOW
INTERFACES
LIQUIDS
NAVIER-STOKES EQUATIONS
POROUS MATERIALS
RADIOACTIVE WASTES