Efficient multiphysics modelling with adaptive grid refinement using a MPFA method |
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| Authors: | Benjamin Faigle Rainer Helmig Ivar Aavatsmark Bernd Flemisch |
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| Institution: | 1. IWS, Department of Hydromechanics and Modelling of Hydrosystems, Universit?t Stuttgart, Pfaffenwaldring 61, 70529, Stuttgart, Germany
2. CIPR, University of Bergen, Allégaten 41, 5007, Bergen, Norway
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| Abstract: | A sequential solution procedure is used to simulate compositional two-phase flow in porous media. We employ a multiphysics concept that adapts the numerical complexity locally according to the underlying processes to increase efficiency. The framework is supplemented by a local refinement of the simulation grid. To calculate the fluxes on such grids, we employ a combination of the standard two-point flux approximation and a multipoint flux approximation where the grid is refined. This is then used to simulate a large-scale example related to underground CO2 storage. |
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