Abstract
To experimentally study transient flows such as dam-break flows, imaging techniques are often used due to the constraints imposed by the highly transient nature of such phenomena. In this paper an experimental laboratory study of tailings dams made with a combined PIV + PTV algorithm is presented. In this algorithm the PIV technique is first applied to determine an estimator for the sediment layer velocity field. The obtained estimator is then used to compute a displacement estimator for the PTV approach. In this method the first step (PIV) provides a global estimation of the sediments velocity field and in the second step (PTV) a particle-by-particle analysis is obtained leading to an increased spatial resolution of the measurements. The obtained algorithm is applied to a laboratory tailings dam-break flow to obtain relevant information about the behavior of the tailings. This paper is a summary of the research presented in other papers by the authors.
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Acknowledgments
This work was supported by the US Department of Homeland Security sponsored Southeast Region Research Initiative (SERRI) at the US Department of Energy Oak Ridge National Laboratory, and to the USDA Agriculture Research Service under the Specific Research Agreement No. 58-6408-1-609 monitored by the USDA-ARS National Sedimentation Laboratory (NSL) and The University of Mississippi (UM). The authors also thank the technical support provided by J. Ferguson, A. Gebrehana and T. Gannaway during the experimental campaign.
First author is now supported by the Research Executive Agency, through the 7th Framework Programme of the European Union, Support for Training and Career Development of Researchers (Marie Curie FP7PEOPLE2012ITN), which funded the Initial Training Network (ITN) HYTECH: Hydrodynamic Transport in Ecologically Critical Heterogeneous Interfaces, No. 316546.
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Aleixo, R., Ozeren, Y., Altinakar, M. (2016). PIV-PTV Measurements of a Tailings Dam-Break Flow. In: Rowiński, P., Marion, A. (eds) Hydrodynamic and Mass Transport at Freshwater Aquatic Interfaces. GeoPlanet: Earth and Planetary Sciences. Springer, Cham. https://doi.org/10.1007/978-3-319-27750-9_21
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DOI: https://doi.org/10.1007/978-3-319-27750-9_21
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