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Effects of Geometry and Hydraulic Characteristics of Shallow Reservoirs on Sediment Entrapment

1
Department of Civil Engineering, Institute Superior Tecnico, 1049-001 Lisbon, Portugal
2
Department of Civil and Environmental Engineering, Idaho State University, Pocatello, ID 83209, USA
3
Department of Civil Engineering, Khavaran Institute of Higher Education, Mashhad, Iran
4
Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah, Iran
5
Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
*
Author to whom correspondence should be addressed.
Water 2018, 10(12), 1725; https://doi.org/10.3390/w10121725
Received: 29 October 2018 / Revised: 18 November 2018 / Accepted: 19 November 2018 / Published: 26 November 2018
(This article belongs to the Special Issue Pipeline Fluid Mechanics)
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PDF [2544 KB, uploaded 26 November 2018]
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Abstract

Sediment and deposition are among the main problems in dam engineering and other related fields. Because of the numerous advantages of numerical modeling, effects of different geometries of reservoirs on the flow pattern and deposition of sediments are investigated using the finite volume based Flow-3D software package. In this study, three rectangular reservoirs with different dimensional ratios are simulated using the large eddy simulation (LES) turbulence model. To validate the numerical modeling, existing experimental data is used. Results indicate that Flow-3D can accurately simulate flow and sediment deposition in the reservoirs, and the numerical data are in reasonable agreement with the experimental results. Numerical efforts showed that the amount of deposition in reservoirs is significantly dependent on the geometry. Among the modeled reservoirs, the 6 × 4 m one has the best performance. Moreover, it can be said that changing the position of the flow’s inlet and outlet of the reservoir does not have a considerable effect on increasing its efficiency. View Full-Text
Keywords: shallow reservoirs; LES turbulence model; sediment; Flow-3D shallow reservoirs; LES turbulence model; sediment; Flow-3D
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zahabi, H.; Torabi, M.; Alamatian, E.; Bahiraei, M.; Goodarzi, M. Effects of Geometry and Hydraulic Characteristics of Shallow Reservoirs on Sediment Entrapment. Water 2018, 10, 1725.

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