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Development and Comparison of Different Model Concepts for Two-Phase Flow in Fractured Porous Media

Project head
Prof. Dr.-Ing. R. Hinkelmann
Scientific assistant
Dr.-Ing. S. Pham Van M.Sc. (Southern Institute of Water Resources Research, Ho chi Minh City, Vietnam)
Project period
01.04.05 - 31.03.08
Land Berlin im Rahmen des NaFöG Programms
Project partner
Institut für Geoökologie, Universität Potsdam [1]

Fast flow processes of water in fracture-like or tube-like structures within porous media occur in number of engineering applications. One example is given by rainfall induced surface-runoff which fast infiltrates via macropores into the subsurface. Another example is given by tube-like failures in dikes caused by animals or dead roots where water can fast infiltrate or exfiltrate. The classical model concept for two-phase flow in porous media assumes the validity of the Darcy law also in the fracture. On the one hand, this model concept should be extended to account for the fast flow in the 'fractures'. On the other hand, it should be compared to other model concepts such as pipe flow or a double-continuum approach which must be further developed for these purposes. The model concepts will be validated by hillslope and dike experiments. The development of upscaling methods, for example with geostatistical methods, is envisaged.

Section through a model domain
Lupe [2]
Water infiltration into a hillslope
Lupe [3]
Seepage line in a dike with fault zone
Lupe [4]
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