IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 3: Water and Carbon: Climate Change Impact : The influence of secondary currents on reservoir sedimentation – experimental and numerical studies
The influence of secondary currents on reservoir sedimentation – experimental and numerical studies
Author : G. Harb1, S. Haun2, S. Ortner1, C. Dorfmann1 and J. Schneider1
In the current paper the sedimentation problems in a reservoir of a run-of-river power plant will be discussed. The hydropower plant is located at the river Enns in Austria. The reservoir is affected by massive deposits of suspended sediment load near the turbines, which are located at the inner site of the river bend. In case of floods, the secondary currents in the river bend further increase the transport of suspended load to the turbine inlets. To reduce the sedimentation, to facilitate transportation of suspended load and to activate the transportation of the deposited sediments an operation method called “soft flushing” has to be carried out. In a three-dimensional numerical model the sedimentation processes and the secondary currents were investigated. The results were compared to ADCP field measurements and supplemental measurements in the physical model of the reservoir.
File Size : 1,220,750 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 3: Water and Carbon: Climate Change Impact
Date Published : 01/07/2011
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