CFD methodology for desynchronized guide vane torque prediction and validation with experimental data

This paper presents a CFD-based methodology for the prediction of guide vane torque in hydraulic turbine distributors for synchronized and desynchronized configurations. A desynchronized configuration occurs when the opening angle of one guide vane differs from the opening angle of all other guide v...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2012-11, Vol.15 (6), p.62004
Main Authors: Vu, T C, Devals, C, Disciullo, J, Iepan, H, Zhang, Y, Guibault, F
Format: Article
Language:English
Subjects:
Automation
Configurations
Distributors
Guide vanes
Hydraulic turbines
Synchronization
Torque
Turbines
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Summary:This paper presents a CFD-based methodology for the prediction of guide vane torque in hydraulic turbine distributors for synchronized and desynchronized configurations. A desynchronized configuration occurs when the opening angle of one guide vane differs from the opening angle of all other guide vanes, which may lead to a torque increase on neigbouring guide vanes. A fully automated numerical procedure is presented, that automates computations for a complete range of operation of a distributor. Results are validated against laboratory measurements.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/15/6/062004