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Comparison of light transmission and reflection techniques to determine concentrations in flow tank experiments

Konz, M. and Ackerer, P. and Huggenberger, P. and Veit, C.. (2009) Comparison of light transmission and reflection techniques to determine concentrations in flow tank experiments. Experiments in fluids, 47 (1). pp. 85-93.

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Official URL: http://edoc.unibas.ch/dok/A5249684

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Abstract

Transmissive and reflective intensity measurements for visual concentration determinations in 2D flow tank experiments were compared and evaluated for their applicability in the study of flow and transport phenomena. A density-dependent heterogeneous flow experiment was conducted and transmission and reflection images of the dyed saltwater plume were analyzed. A single light source and dark curtains forced the light to pass through the porous media only, thus facilitating the transmission measurements. The reflection images delivered a more homogeneous spatial illumination than the transmission images. Major perturbations of the transmission images were lens flare effects and light dispersion within the bead-water-Plexiglas system which smear the front of the plume. Based on the conducted evaluation of transmissive and reflective intensity measurements, the reflection data delivered more reliable intensity values to derive solute concentrations in intermediate scale flow tank experiments.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geologie-Paläontologie > Applied Geology (Huggenberger)
UniBasel Contributors:Huggenberger, Peter
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:0723-4864
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:13 Feb 2018 12:37
Deposited On:22 Mar 2012 14:10

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