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Computational Modeling of Fine Sediment Relocation Within a Dam Reservoir by Means of Artificial Flood Generation in a Reservoir Cascade
Author(s) -
Bladé Castellet E.,
SánchezJuny M.,
Arbat Bofill M.,
Dolz Ripollés J.
Publication year - 2019
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/2018wr024434
Subject(s) - sediment , cascade , relocation , geology , context (archaeology) , flood myth , sediment transport , hydrology (agriculture) , environmental science , petroleum engineering , geotechnical engineering , geomorphology , engineering , computer science , chemical engineering , programming language , paleontology , philosophy , theology
Sediment relocation is a process where water turbulence moves deposits from shallower to deeper zones of a lake or reservoir. Additionally, in the context of a reservoir cascade relocation is a one of the possible sediment management strategies used to maintain the operational capacity of reservoirs. Numerical modeling tools applied to sediment dynamics can help to better understand the reservoir sedimentary processes and enhance the design of management strategies. This paper describes the detailed analysis of the cohesive sediment dynamics within a reservoir and a methodology for the calibration of numerical models for the management of sediment deposits through dam operation and upstream generation of artificial floods. The calibration process was based on an accumulated sediment volume curve and the usage of simplified models for an initial parameter estimation. The calibrated model has been applied to analyze different possibilities of sediment relocation strategies.