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http://dx.doi.org/10.5293/IJFMS.2015.8.3.132

CFD Analysis for Aligned and Misaligned Guide Vane Torque Prediction and Validation with Experimental Data  

Devals, Christophe (Department of Computer Engineering, Ecole Polytechnique de Montreal)
Vu, Thi C. (Andritz Hydro Ltd.)
Guibault, Francois (Department of Computer Engineering, Ecole Polytechnique de Montreal)
Publication Information
International Journal of Fluid Machinery and Systems / v.8, no.3, 2015 , pp. 132-141 More about this Journal
Abstract
This paper presents a CFD-based methodology for the prediction of guide vane torque in hydraulic turbine distributor for aligned and misaligned configurations. A misaligned or 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 neighbouring guide vanes. A fully automated numerical procedure is presented, that automates computations for a complete range of operation of a 2D or 3D distributor. Results are validated against laboratory measurements.
Keywords
Torque; Guide Vane; CFD; Casing; Distributor;
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