Details zur Publikation |
Kategorie | Textpublikation |
Referenztyp | Zeitschriften |
DOI | 10.1016/j.jcp.2011.07.030 |
Titel (primär) | Are upwind techniques in multi-phase flow models necessary? |
Autor | Park, C.-H.; Böttcher, N.; Wang, W. ; Kolditz, O. |
Quelle | Journal of Computational Physics |
Erscheinungsjahr | 2011 |
Department | ENVINF |
Band/Volume | 230 |
Heft | 22 |
Seite von | 8304 |
Seite bis | 8312 |
Sprache | englisch |
Keywords | Two-phase flow; Galerkin finite element methods; Upwind schemes |
Abstract | Two alternatives of primary variables are compared for two-phase flow in heterogeneous media by solving fully established benchmarks. The first combination utilizes pressure of the wetting fluid and saturation of the non-wetting fluid as primary variables, while the second employs capillary pressure of the wetting fluid and pressure of the non-wetting fluid. While the standard Galerkin finite element method (SGFEM) is known to fail in the physical reproduction of two-phase flow in heterogeneous media (unless employing a fully upwind correction), the second scheme with capillary pressure as a primary variable without applying an upwind technique produces correct physical fluid behaviour in heterogeneous media, as observed from experiments. |
dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=12201 |
Park, C.-H., Böttcher, N., Wang, W., Kolditz, O. (2011): Are upwind techniques in multi-phase flow models necessary? J. Comput. Phys. 230 (22), 8304 - 8312 10.1016/j.jcp.2011.07.030 |