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dc.contributor.authorRätz, Andreas-
dc.contributor.authorSchweizer, Ben-
dc.date.accessioned2012-03-16T13:02:03Z-
dc.date.available2012-03-16T13:02:03Z-
dc.date.issued2012-03-16-
dc.identifier.urihttp://hdl.handle.net/2003/29390-
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-3388-
dc.description.abstractWe study flow problems in unsaturated porous media. Our main interest is the gravity driven penetration of a dry material, a situation in which fingering effects can be observed experimentally and numerically. The flow is described by either a Richards or a two-phase model. The important modelling aspect regards the capillary pressure relation which can include static hysteresis and dynamic corrections. We report on analytical existence and instability results for the corresponding models and present numerical calculations. We show that fingering effects can be observed in various models and discuss the importance of the static hysteresis term.en
dc.language.isoen-
dc.subjectgravity fingering instabilityen
dc.subjecthysteresisen
dc.subjecttwo-phase flowen
dc.subject.ddc610-
dc.titleHysteresis models and gravity fingering in porous mediaen
dc.typeTextde
dc.type.publicationtypepreprinten
dcterms.accessRightsopen access-
Appears in Collections:Preprints der Fakultät für Mathematik
Schweizer, Ben Prof. Dr.

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