Evaluation of Guiding Device for Downstream Fish Migration with In-field Particle Tracking Velocimetry and CFD

Document identifier: oai:DiVA.org:ltu-7806
Access full text here:10.18869/acadpub.jafm.67.222.21391
Keyword: Engineering and Technology, Mechanical Engineering, Fluid Mechanics and Acoustics, Teknik och teknologier, Maskinteknik, Strömningsmekanik och akustik, Strömningslära, Fluid Mechanics
Publication year: 2015
Relevant Sustainable Development Goals (SDGs):
SDG 14 Life below waterSDG 2 Zero hunger
The SDG label(s) above have been assigned by OSDG.ai

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.

Authors

T. Staffan Lundström

Luleå tekniska universitet; Strömningslära och experimentell mekanik
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Mattias Brynjell Rahkola

Luleå tekniska universitet; Institutionen för teknikvetenskap och matematik
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Anna-Lena Ljung

Luleå tekniska universitet; Strömningslära och experimentell mekanik
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J. Gunnar I. Hellström

Luleå tekniska universitet; Strömningslära och experimentell mekanik
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Torbjörn Green

Luleå tekniska universitet; Institutionen för teknikvetenskap och matematik
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