Evaluation of Guiding Device for Downstream Fish Migration with in-Field Particle Tracking Velocimetry and CFD

Author(s):

Staffan Lundstrom , Mattias B-R , Anna-Lena Ljung , Gunnar Hellstr , Oumlm. , Torbj , Ouml , Rn Green

Message:
Abstract:
The performance of a fish guiding device located just upstream a hydropower plant is scrutinized. The device is designed to redirect surface orientated down-stream migrating fish (smolts) away from the turbines towards a spillway that act as a relatively safe fishway. Particles are added up-stream the device and the fraction particles going to the spillway is measured. A two-frame Particle Tracking Velocimetry algorithm is used to derive the velocity field of the water. The experimental results are compared to simulations with CFD. If the smolts move passively as the particles used in the study the guiding device works very well and some modifications may optimize its performance. In-field Particle Tracking Velocimetry is a suitable technique for the current case and the results compare well with numerical simulations.
Language:
English
Published:
Journal Of Applied Fluid Mechanics, Volume:8 Issue: 3, Mar-Apr 2015
Pages:
579 to 589
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