<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n"^^ . "Carbon capture and storage (CSS) is a recently discussed new technology, aimed at allow-\r\ning an ongoing use of fossil fuels while preventing the produced CO2 from being released\r\ninto the atmosphere. A suitable mathematical model to simulate this process is com-\r\npositional multiphase flow with equilibrium phase exchange. It is able to represent the\r\nimportant process of solubility trapping. One of the big problems arising in two-phase\r\ntwo-component flow simulations is the disappearance of the nonwetting phase, where the\r\nsaturation cannot be used as independent variable.\r\nIn this thesis, a persistent variable formulation is presented, which has the important\r\nadvantage that only one set of primary variables can be used for the biphasic as well as\r\nthe monophasic case. Using a modified Newton solver, also developed in the course of this\r\nwork, the convergence at the single-phase/two-phase interface can be greatly improved.\r\nThe persistent variable formulation is implemented in the DUNE simulation framework\r\nwith capillary pressure and nonwetting phase pressure as primary variables. The presented\r\nmethod is verified by numerical test simulations of CO2 injection in saline aquifers. A\r\nfine grid resolution for these large-scale simulations can only be achieved by the use of\r\nheavy parallelization. The numerical results for the recent MoMas benchmark agree with\r\nthe output of other groups. For several test cases, grid convergence and scalability are\r\nanalyzed numerically. The method scales well and converges with the optimal order of\r\nconvergence.\r\n"^^ . "2015" . . . . . . . "Rebecca de"^^ . "Cuveland"^^ . "Rebecca de Cuveland"^^ . . . . . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n (PDF)"^^ . . . "thesis_final.pdf"^^ . . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Two-Phase Compositional Flow Simulation\r\nwith Persistent Variables\r\n (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #18629 \n\nTwo-Phase Compositional Flow Simulation \nwith Persistent Variables \n\n\n" . "text/html" . . . "510 Mathematik"@de . "510 Mathematics"@en . .