Regularization schemes for degenerate Richards equations and outflow conditions

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dc.contributor.authorSchweizer, Ben
dc.contributor.authorPop, Iuliu S.
dc.date.accessioned2009-10-23T10:24:26Z
dc.date.available2009-10-23T10:24:26Z
dc.date.issued2009-10-23T10:24:26Z
dc.description.abstractWe 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.en
dc.identifier.urihttp://hdl.handle.net/2003/26466
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-15934
dc.language.isoen
dc.relation.ispartofseriesPreprints der Fakultät für Mathematik ; 2009-15de
dc.subjectdoubly degenerate equationen
dc.subjectoutflow problemen
dc.subjectnumerical approximationen
dc.subjectvariational inequalitiesen
dc.subject.ddc610
dc.titleRegularization schemes for degenerate Richards equations and outflow conditionsen
dc.typeTextde
dc.type.publicationtypepreprinten
dcterms.accessRightsopen access

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