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Session D7: Entrance Arrangement of Fishways – Interaction of Entrance Location, Turbine Flow and Attraction Flow
Abstract:
Besides passability the attraction of a fishway at the tailwater of a barrier with a hydropower plant is the most important criteria to ensure that a fishway is fully functional. The relevant national and international guidelines and regulations give recommendations regarding the position of the entrance or multiple entrances, the entrance geometry, the substrate connection and the attraction flow. Fishways currently planned at federal waterways in Germany, as well as existing structures have various types of entrance arrangements. Mainly three different types can be found that differ significantly in the entrance configuration but comply with the recommendations regarding attraction given by the current guidelines and regulations. To asses and compare the three different entrance configurations at several relevant hydraulic boundary conditions physical model tests in a 1:10 scale model of a barrier with a hydropower plant were performed. The resulting flow conditions in the tailwater were measured in detail with a 3D ADV probe, related to the behavior and swimming abilities of the relevant fish species and evaluated regarding the formation of a suitable migratory corridor with a significant attraction flow
Planung der Fischaufstiegsanlage Quitzöbel an der Havel unter komplexen hydrologischen Randbedingungen
P16-33. Standardized serum-free cryomedia have minimum cytotoxicity and maintain antigen-specific T-cell response
Fischabstieg über Schlauchwehre: Untersuchungen der Strömungsverhältnisse und Identifizierung der Abflussbereiche mit erhöhtem Verletzungsrisiko
Untersuchung der kleinräumigen Auffindbarkeit der bestehenden Fischaufstiegsanlage Nassau/Lahn
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