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Evaluation and comparison of transverse dispersivity collected from experiments and field tests

Liu Chang1, Falk Händel1, Prabhas Yadav2, Martin Binder1, Rudolf Liedl1, Peter Dietrich3
1 Institut für Grundwasserwirtschaft, Technische Universität Dresden, Bergstraße 66, 01069 Dresden
2 School of Engineering and Technology, Department of Civil Engineering, Sharda University, Greater Noida, India
3 Department Monitoring und Erkundungstechnologien, Helmholtz-Zentrum für Umweltforschung Leipzig, Permoserstraße 15, 04318 Leipzig

P 12.3 in Grundwasserqualität

 

 

Groundwater pollution remains a world-wide problem. In this context, pre-assessment of the spatial extents of a contaminated plume is crucial for any treatment to ensure the safety of biospheres and humanity. The fate and behavior of contaminants strongly depend on mixing which is affected by transverse dispersion. In this case, knowledge of transverse dispersivity is critically needed. Some experiments and field tests were analyzed from the literature in order to get the value of transverse dispersivity. The objective of this study is to compile and evaluate these data of transverse dispersivity and relate different values of transverse dispersivity to hydrogeologic parameters. 12 parameters have been included in the study, and they are divided into 7 groups according to their properties. Comprehensive literature review for searching data of transverse dispersivity has been done. Further, data analysis has been made to find out the influential factors which can affect the values of transverse dispersivity. Eventually, we evaluated combined effects of factors such as grain size and velocity of flow possibly impacting transverse dispersivity.

Letzte Änderung 01.11.2013