Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1016/j.nonrwa.2011.05.003 |
| Titel (primär) | Convergence analysis for a mixed finite element scheme for flow in strictly unsaturated porous media |
| Autor | Radu, F.A.; Wang, W.
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| Quelle | Nonlinear Analysis: Real World Applications |
| Erscheinungsjahr | 2014 |
| Department | ENVINF |
| Band/Volume | 15 |
| Seite von | 266 |
| Seite bis | 275 |
| Sprache | englisch |
| Keywords | Mixed finite element method; Richards' equation; Convergent numerical schemes; Flow in porous media |
| UFZ Querschnittsthemen | RU5; |
| Abstract | In this paper, we analyze a fully discrete numerical scheme for water flow in strictly unsaturated porous media. The water flow is modeled by the Richards equation, a nonlinear parabolic partial differential equation. The scheme is based on the Euler implicit (EI) for the discretization in time, and the mixed finite element method (MFEM), more precisely the lowest order Raviart–Thomas elements, for the discretization in space. Error estimates are derived to show the convergence of the scheme. An optimal order of convergence is obtained. The paper concludes with two numerical tests, which are in good agreement with the theoretical estimates. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=12208 |
| Radu, F.A., Wang, W. (2014): Convergence analysis for a mixed finite element scheme for flow in strictly unsaturated porous media Nonlinear Anal.-Real World Appl. 15 , 266 - 275 10.1016/j.nonrwa.2011.05.003 |
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