Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
A numerical study of the location and function of the entrance of a fishway in a regulated river
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies.
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies.
Visa övriga samt affilieringar
2010 (Engelska)Ingår i: 8th International Symposium on ECOHYDRAULICS: Bridging between Ecology and Hydraulics and Leading the Society's New Need - Living with Nature, 2010, s. 277-284Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Simulation driven design with Computational Fluid Dynamics has been used to evaluate the flow downstream a hydropower plant with regards to upstream migrating fish. Field measurements with an Acoustic Doppler Current Profiler were performed and the measurements were used to validate the simulations. The measurements indicate a more unstable flow than the simulations and the tailrace jet from the turbines is stronger in the simulations. The simulations are however considered to capture the important features of the flow in a way that makes them viable for attraction water simulations. A fishway entrance was included in the simulations and the subsequent attraction water was evaluated for two positions and two angles of the entrance at different turbine discharges. Results show that both positions are viable and that a position where the flow from the fishway does not have to compete with the flow from the power plant will generate superior attraction water. Simulations were also performed further downstream where the flow from the turbines meets the old river bed which is the current fish passage for upstream migrating fish. A modification of the old river bed was made in the model as one scenario to generate better attraction water. This considerably increases the attraction water although it cannot compete with the flow from the tailrace tunnel.

Ort, förlag, år, upplaga, sidor
2010. s. 277-284
Nationell ämneskategori
Strömningsmekanik och akustik
Forskningsämne
Strömningslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-35854Lokalt ID: a8d12240-f3c1-11df-8b36-000ea68e967bOAI: oai:DiVA.org:ltu-35854DiVA, id: diva2:1009108
Konferens
International Symposium on Ecohydraulics : 12/09/2010 - 16/09/2010
Anmärkning
Godkänd; 2010; 20101119 (aneane)Tillgänglig från: 2016-09-30 Skapad: 2016-09-30 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

Open Access i DiVA

fulltext(834 kB)128 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 834 kBChecksumma SHA-512
78cad611e77852b453a78d10b8a2a3ade8017f886f6e6de65fa25216e00a781d30f9c48b30ce7b4af81de071751e0c329343dceec4298273a5be0a5fa4545d51
Typ fulltextMimetyp application/pdf

Personposter BETA

Andersson, Anders G.Lindmark, ElianneAndreasson, PatrikLundström, Staffan

Sök vidare i DiVA

Av författaren/redaktören
Andersson, Anders G.Lindmark, ElianneAndreasson, PatrikLundström, Staffan
Av organisationen
Strömningslära och experimentell mekanik
Strömningsmekanik och akustik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 128 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 183 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf