Author(s): V. Kienberger; B. Huber
Linked Author(s):
Keywords: CFD-simulation; Flood discharge; HYDROMATRIX? -technology; Irrigation dam
Abstract: An existing dam on Blue Nile River shall be equipped with an additional hydropower system. The dam with a length of 3 km and a height up to 36 m was erected around 1925 for irrigation and flood release purposes. In the 1960ies a powerhouse was added. The rubble filled masonry dam has 80 s luice openings. 20 respectively 50 of these openings shall be provided with turbine generator-units, so-called HYDROMATRIX_R_ - units. Though the units could be removed in case of flood, remaining embedded draft tubes will remain in the sluice openings and would block flood discharge area partially. Additional obstructions would be caused by guiding rails at the entrance of the sluiceways and a tailback beam structure. CFDsimulations were carried out to gain information about the amount of the reduction of flood discharge capacity. Results of these simulations - as loss coefficient and discharge – a re shown. The current situation is compared with the planned state.
Year: 2007