Increasing the attraction water velocity at fishway entrances: model and field experiments
2008 (English)In: Proceedings of the 19th International Symposium on Transport Phenomena (ISTP-19): Reykjavik, Iceland, August 17-21, 2008 / [ed] Sigurdur Brynjolfsson; Olafur Petur Palsson; Jong H. Kim, University of Iceland, Faculty of Industrial Engineering, Mechanical Engineering and Computer Science , 2008Conference paper (Refereed)
When Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) migrates upstream rivers they encounter obstructions such as hydropower plants. To increase the water velocity at the fish inlet of a fishway an attraction channel is used. The channel increases the velocity without using extra attraction water from the reservoir. Field experiments show that fish use the channel, and lab experiments show that the water velocity out of the channel is 38 % higher than the surrounding velocity and the increased velocity lasts for about 18 water depths down stream.
Place, publisher, year, edition, pages
University of Iceland, Faculty of Industrial Engineering, Mechanical Engineering and Computer Science , 2008.
Research subject Fluid Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-29789Local ID: 362c0da0-7280-11dd-a60f-000ea68e967bOAI: oai:DiVA.org:ltu-29789DiVA: diva2:1003015
International Symposium on Transport Phenomena : 17/08/2008 - 21/08/2008
Godkänd; 2008; Bibliografisk uppgift: CD-ROM; 20080825 (eliwas)2016-09-302016-09-30Bibliographically approved