Authors: | Schweizer, Ben Pop, Iuliu S. |
Title: | Regularization schemes for degenerate Richards equations and outflow conditions |
Language (ISO): | en |
Abstract: | We analyze regularization schemes for the Richards equation and a time discrete numerical approximation. The original equations can be doubly degenerate, therefore they may exhibit fast and slow diffusion. Additionally, we treat outflow conditions that model an interface separating the porous medium from a free flow domain. In both situations we provide a regularization with a non-degenerate equation and standard boundary conditions, and discuss the convergence rates of the approximations. |
Subject Headings: | doubly degenerate equation outflow problem numerical approximation variational inequalities |
URI: | http://hdl.handle.net/2003/26466 http://dx.doi.org/10.17877/DE290R-15934 |
Issue Date: | 2009-10-23T10:24:26Z |
Appears in Collections: | Preprints der Fakultät für Mathematik Schweizer, Ben Prof. Dr. |
Files in This Item:
File | Description | Size | Format | |
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mathematicalPreprint15-09.pdf | 394.89 kB | Adobe PDF | View/Open |
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