Numerical Simulation and Experimental Verification of Downstream Fish migration in a Bulb turbine

Helmut Benigni*, Josef Schneider, Walter Reckendorfer, Jürgen Schiffer, Jeffrey Tuhtan, Stefan Leithner, Gerald Zenz, Peter Meusburger

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftKonferenzartikelBegutachtung


Downward migrating fish can be damaged when passing through turbines in the direction upstream to downstream. The overall influence on the fish population is not known yet. In recent decades, many publications with steady-state CFD calculations for the passage of fish have been published. However, transient CFD calculations show that the range in which fish pass the runner itself is not easily predictable but rather random, influenced by the current position of the runner, thus affecting the probability of survival. The pressures, which are also well represented by steady-state CFD calculations, are compared by applying “Live Fish” (typical types for the middle of Europe) as well as “Barotrauma Detections Sensors (BDS)” which were exposed to the area of the turbine intake at different heights and monitored during downstream migration.
FachzeitschriftIOP Conference Series: Earth and Environmental Science
PublikationsstatusVeröffentlicht - 1 Juli 2022
Veranstaltung31st IAHR Symposium on Hydraulic Machinery and Systems - NTNU, Trondheim, Norwegen
Dauer: 27 Juni 20221 Juli 2022


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