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Institut für Wasserbau - IWS

Selected Topics and International Network Lectures

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Dienstag
25.10.2005
16:00 Uhr
Dr. Adam Szymkiewicz, Institute of Hydroengineering of the Polish Academy of Sciences

Generalized macroscopic model for unsaturated water flow in binary porous media

Binary porous media are composed of two materials having different hydraulic properties. According to the asymptotic homogenization theory, the unsaturated flow in such type of media is described with various models, depending on the ratio of the hydraulic diffusivity of the two components and the connectivity of the most conductive component. It can be shown that a continuous passage between various models exist. It is also possible to deduce a generalized model, suitable for the entire range of the diffusivity ratio. The obtained results are compared with other models that can be found in the literature.