Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Grundwasserstrom"”.
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Der Einfluss regionaler Grundwasserfließsysteme auf die Initialphase der Speläogenese tiefer Karstsysteme
This paper gives an overview of the key principles necessary for an understanding of Speleogenesis, including selected speleogenetic models. The most popular of these models at the moment is the four-state model, which attributes the depth of a karst system principally to the depth and spatial …
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Physical and numerical experiments of flow and transport in heterogeneous fractural media : single fracture flow at high Reynolds numbers, and reactive particle transport
The first part of the thesis is focusing on an experimental study of single phase flow processes in a single granite fracture. In order to obtain the aperture field, two different measurement methods were developed and evaluated. The effect of heterogeneities of the aperture field was shown by a …
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Measurement, estimation and modelling of groundwater flow velocity at Krauthausen test site
To enable precise understanding and prediction of transport in porous media, physical, chemical and biological processes and the interaction between these processes have to be considered. This is an interdisciplinary problem. In the scope of this work the focus is on the physically impelling force …
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Stofftransportvorgänge in Festgesteinsaquiferen: Analyse von Tracerdurchbruchskurven zur Identifikation eines geeigneten Mehrkontinuum-Ansatzes
Characterizing flow and transport processes in fracured porous media is an essential issue to the modeling and experimental community. This thesis focuses on the analyzis of tracer breakthrough curves in such media. The basic idea is to develop a method which allows for using tracer pulses as …
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Thermisch-hydraulische Simulationen zur Optimierung von Vereisungsmaßnahmen im Tunnelbau unter Einfluss einer Grundwasserströmung
The ground freezing method has recently been given a boost as a versatile technique to provide artificially frozen ground as impervious and bearing support structures for tunneling applications. Excavation can proceed safely inside the frozen ground structure until the final lining provides …
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Zur Strömungssimulation in Einzelklüften: Gegenüberstellung von numerischen Methoden und Experiment
Scientific research in the field of flow and transport processes in fractured rock is of high relevance due to the frequent occurrence of fractures in geological formations. For this reason, fracture flow problems are addressed in many fields of engineering tasks. Based on results of numerical …