Next Article in Journal
Hydrological Modeling to Assess the Efficiency of Groundwater Replenishment through Natural Reservoirs in the Hungarian Drava River Floodplain
Previous Article in Journal
Glacial Lake Outburst Flood (GLOF) Events and Water Response in A Patagonian Fjord
Open AccessArticle

Sediment Management at Run-of-River Reservoirs Using Numerical Modelling

1
Chair of Hydraulic and Water Resources Engineering, Technical University of Munich, Arcisstrasse 21, D-80333 Munich, Germany
2
Water Authority Rosenheim, Königstrasse 19, D-83022 Rosenheim, Germany
*
Author to whom correspondence should be addressed.
Water 2020, 12(1), 249; https://doi.org/10.3390/w12010249
Received: 12 December 2019 / Revised: 7 January 2020 / Accepted: 10 January 2020 / Published: 16 January 2020
(This article belongs to the Section Hydraulics)
The worldwide storage volume of reservoirs is estimated to decrease by 0.5–1% per year due to sedimentation, which is higher than the gain in volume by newly built dams. For water supply or flood protection, the preservation of the storage volume is crucial. Operators and authorities, therefore, need sediment management concepts to ensure that the storage volume is sufficient. In this study, we developed a sediment-flushing concept using 2D numerical modelling for a run-of-river hydropower plant located in the Saalach River in southeastern Germany. The calibrated bed elevation was used as the initial bed for a number of simulations with different discharge regimes under varying operational schemes. By comparing the simulated results, we propose an appropriate flushing scheme in terms of intensity and duration to obtain a balance of sediment regime in the river. Furthermore, we demonstrate that such an optimised sediment management can generate synergies for improving measures of flood protection. View Full-Text
Keywords: TELEMAC-SISYPHE; numerical modelling; reservoir management; sedimentation; run-of-river; flushing TELEMAC-SISYPHE; numerical modelling; reservoir management; sedimentation; run-of-river; flushing
Show Figures

Figure 1

MDPI and ACS Style

Reisenbüchler, M.; Bui, M.D.; Skublics, D.; Rutschmann, P. Sediment Management at Run-of-River Reservoirs Using Numerical Modelling. Water 2020, 12, 249.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop