A model for multiphase flow and transport in porous media including a phenomenological approach to account for deformation—a model concept and its validation within a code intercomparison study
Multiphase flow processes in unsaturated cohesive soils are often affected by deformation due to swelling and shrinking as a result of varying water contents. This paper presents a model concept which is denoted ‘phenomenological’ in terms of the processes responsible for soil deformation, since the...
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| Veröffentlicht in: | Computational geosciences 2009-09, Vol.13 (3), p.281-300 |
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| creator | Freiboth, Sandra Class, Holger Helmig, Rainer Graf, Tobias Ehlers, Wolfgang Schwarz, Viktoria Vrettos, Christos |
| description | Multiphase flow processes in unsaturated cohesive soils are often affected by deformation due to swelling and shrinking as a result of varying water contents. This paper presents a model concept which is denoted ‘phenomenological’ in terms of the processes responsible for soil deformation, since the effects of deformation on flow and transport are only considered by constitutive relations that allow an adaptation of the hydraulic properties. This new model is validated in a detailed intercomparison study with two state-of-the-art models that are capable of explicitly describing the processes relevant for the deformation. A ‘numerical experiment’ with a state-of-the-art reference model is used to produce ‘measurement data’ for an inverse-modelling-based estimation of the model input parameters for the phenomenological concept. |
| doi_str_mv | 10.1007/s10596-008-9118-6 |
| format | Article |
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This paper presents a model concept which is denoted ‘phenomenological’ in terms of the processes responsible for soil deformation, since the effects of deformation on flow and transport are only considered by constitutive relations that allow an adaptation of the hydraulic properties. This new model is validated in a detailed intercomparison study with two state-of-the-art models that are capable of explicitly describing the processes relevant for the deformation. 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| subjects | Cohesive soils Deformation Earth and Environmental Science Earth Sciences Geology Geotechnical Engineering & Applied Earth Sciences Hydraulic properties Hydrogeology Mathematical Modeling and Industrial Mathematics Multiphase flow Original Paper Porous media Rheology Soil Science & Conservation Soils |
| title | A model for multiphase flow and transport in porous media including a phenomenological approach to account for deformation—a model concept and its validation within a code intercomparison study |
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