Comparison of DDFV and DG methods for flow in anisotropic heterogeneous porous media
Idioma
en
Article de revue
Este ítem está publicado en
Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles. 2014, vol. 69, n° 4, p. 673-686
Institut Français du Pétrole (IFP)
Resumen en inglés
We present a preliminary work to simulate gas injection in deep aquifers. Unsteady single-phase flows are considered. We compare Discrete Duality Finite Volume (DDFV) and Discon- tinuous Galerkin (DG) schemes applied to ...Leer más >
We present a preliminary work to simulate gas injection in deep aquifers. Unsteady single-phase flows are considered. We compare Discrete Duality Finite Volume (DDFV) and Discon- tinuous Galerkin (DG) schemes applied to discretize the diffusive term. The second-order Backward Differentiation Formula is used for the time-stepping method. On the one hand, the DDFV methods are easy to implement, ensure a preservation of physical properties and offer superconvergence in the L2 -norm on a regular basis. On the other hand, the DG methods are flexible, allow arbitrary order of accuracy, and their ample theoretical foundation make them a reliable choice for many computational problems. We consider here the Symmetric Weighted Interior Penalty Galerkin method. Accuracy and robustness of these two schemes are tested and compared on various test cases, especially in anisotropic heterogeneous media.< Leer menos
Palabras clave en italiano
Richards equation
finite volume
discontinuous galerkin
Proyecto ANR
Centre de Mathématiques Henri Lebesgue : fondements, interactions, applications et Formation - ANR-11-LABX-0020
Orígen
Importado de HalCentros de investigación