The optimization of j-groove shape in the draft tube of a francis turbine to suppress the draft surge

Suppression of draft surge caused by vortex and cavitation surge in the draft tube is very important to improve the turbine performance when the turbine is operated in the range of partial load condition. In present work, a series of CFD analysis have been conducted in the range of partial load, des...

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Veröffentlicht in:	IOP conference series. Materials Science and Engineering 2013-01, Vol.52 (5), p.52030-6
Hauptverfasser:	Wei, Q S, Choi, Y D
Format:	Artikel
Sprache:	eng
Schlagworte:	Cavitation Diameters Draft tubes Fluid flow Grooves Mathematical analysis Optimization Outlets Surges Turbines Vortices
Online-Zugang:	Volltext
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