Cristin-resultat-ID: 1736618
Sist endret: 2. februar 2020, 09:32
NVI-rapporteringsår: 2019
Resultat
Vitenskapelig artikkel
2019

Development of a test rig for investigating the flow field around guide vanes of Francis turbines

Bidragsytere:
  • Sailesh Chitrakar
  • Hari Prasad Neopane og
  • Ole Gunnar Dahlhaug

Tidsskrift

Flow Measurement and Instrumentation
ISSN 0955-5986
e-ISSN 1873-6998
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2019
Publisert online: 2019
Volum: 70
Artikkelnummer: 101648

Importkilder

Scopus-ID: 2-s2.0-85073228950

Beskrivelse Beskrivelse

Tittel

Development of a test rig for investigating the flow field around guide vanes of Francis turbines

Sammendrag

This paper summarizes the development of a test rig containing three guide vanes of a Francis turbine, whose flow field is set up to match with that of the actual turbine. The rig is made suitable for Particle Image Velocimetry (PIV), such that the flow field around guide vanes can be measured. It has been studied that using three guide vanes give optimum results in terms of the lab capacity and having minimum influence of the wall surrounding the guide vanes. This rig also facilitates the measurements at off-designed conditions by changing the guide vane’s opening angles. The flow conduits at inlet and outlet of the vanes have been optimized using CFD, to match the velocities corresponding to the turbine’s design. The rig is also made suitable for testing the guide vanes with different clearance gaps. On comparing the results obtained from the experiment with CFD on the basis of velocity and pressure measurement, it is seen that the two results are comparable

Bidragsytere

Sailesh Chitrakar

  • Tilknyttet:
    Forfatter
    ved Kathmandu University

Hari Prasad Neopane

  • Tilknyttet:
    Forfatter
    ved Kathmandu University

Ole Gunnar Dahlhaug

  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
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