Dynamic capillary effects in heterogeneous porous media
In standard multi-phase flow models on porous media, a capillary pressure saturation relationship developed under static conditions is assumed. Recent experiments have shown that this static relationship cannot explain dynamic effects as seen for example in outflow experiments. In this paper, we use...
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| Veröffentlicht in: | Computational geosciences 2007-09, Vol.11 (3), p.261-274 |
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| creator | Helmig, Rainer Weiss, Alexander Wohlmuth, Barbara I |
| description | In standard multi-phase flow models on porous media, a capillary pressure saturation relationship developed under static conditions is assumed. Recent experiments have shown that this static relationship cannot explain dynamic effects as seen for example in outflow experiments. In this paper, we use a static capillary pressure model and a dynamic capillary pressure model based on the concept of Hassanizadeh and Gray and examine the behavior with respect to material interfaces. We introduce a new numerical scheme for the one-dimensional case using a Lagrange multiplier approach and develop a suitable interface condition. The behavior at the interface is discussed and verified by various numerical simulations.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s10596-007-9050-1 |
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| identifier | ISSN: 1420-0597 |
| ispartof | Computational geosciences, 2007-09, Vol.11 (3), p.261-274 |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Economic models Lagrange multiplier Porous media Studies |
| title | Dynamic capillary effects in heterogeneous porous media |
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