Drivers, impacts and mitigation of increased sedimentation in the hydropower reservoirs of east Africa
Hydropower reservoirs are essential for the climate-neutral development of East Africa.
Hydropower production, however, is threatened by human activities that lead to a decrease …
Hydropower production, however, is threatened by human activities that lead to a decrease …
Multiple solutions of the Navier-Stokes equations computing water flow in sand traps
SK Almeland, NRB Olsen, K Bråveit… - … of computational fluid …, 2019 - Taylor & Francis
Two cases are presented wherein the main flow pattern in sand traps changes considerably
as a function of discretization scheme, grid resolution and turbulence model. Both cases …
as a function of discretization scheme, grid resolution and turbulence model. Both cases …
Numerical simulation of scour and flow field over movable bed induced by a submerged wall jet
H Samma, A Khosrojerdi, M Rostam-Abadi… - Journal of …, 2020 - iwaponline.com
Dam construction continues its rapid expansion around the world primarily for the purpose of
hydropower generation. One important consequence of such projects is local scour at the …
hydropower generation. One important consequence of such projects is local scour at the …
Interdisciplinary reservoir management—a tool for sustainable water resources management
Reservoirs are a common way to store and retain water serving for a multitude of purposes
like storage of drinking and irrigation water, recreation, flood protection, navigation, and …
like storage of drinking and irrigation water, recreation, flood protection, navigation, and …
Reservoir sediment management using artificial neural networks: A case study of the lower section of the Alpine Saalach River
Reservoir sedimentation is a critical issue worldwide, resulting in reduced storage volumes
and, thus, reservoir efficiency. Moreover, sedimentation can also increase the flood risk at …
and, thus, reservoir efficiency. Moreover, sedimentation can also increase the flood risk at …
Sediment management at run-of-river reservoirs using numerical modelling
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 …
due to sedimentation, which is higher than the gain in volume by newly built dams. For water …
Comparison of local and global optimization methods for calibration of a 3D morphodynamic model of a curved channel
V Shoarinezhad, S Wieprecht, S Haun - Water, 2020 - mdpi.com
In curved channels, the flow characteristics, sediment transport mechanisms, and bed
evolution are more complex than in straight channels, owing to the interaction between the …
evolution are more complex than in straight channels, owing to the interaction between the …
Spatio‐temporal variability of suspended sediments in rivers and ecological implications of reservoir flushing operations
M Tritthart, M Haimann, H Habersack… - River Research and …, 2019 - Wiley Online Library
High suspended sediment concentrations during reservoir flushing are known to be harmful
to biota in downstream river stretches. Therefore, it is common practice to set legal …
to biota in downstream river stretches. Therefore, it is common practice to set legal …
Modelling fish habitat influenced by sediment flushing operations from an Alpine reservoir
The periodic removal of deposited sediment in Alpine artificial reservoirs can be carried out
through the flushing technique, in which the bottom outlets of the dam are opened to let …
through the flushing technique, in which the bottom outlets of the dam are opened to let …
Effect of submerged vanes in front of circular reservoir intake on sediment flushing cone
Reservoir sedimentation is a long-term process with various risks, such as reduction of
storage capacity, hydropower generation and flood control functions throughout a reservoir's …
storage capacity, hydropower generation and flood control functions throughout a reservoir's …