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RISUnsteady Computational Fluid Dynamic Analysis of the Behavior of Guide Vane Trailingâ€گEdge Injection and Its Effects on Downstream Rotor Performance in a Francis Hydroturbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unique guide vane design, which includes trailingedge jets, is presented for a mixedflow Francis hydroturbine. The water injection causes a change in bulk flow direction at the inlet of the rotor. When properly tuned, ...
Computational and Theoretical Analyses of the Precessing Vortex Rope in a Simplified Draft Tube of a Scaled Model of a Francis Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Results on flows in a draft tube of a constant-head, constant-specific speed, model Francis turbine are presented based on computational fluid dynamics (CFD) simulations and theoretical analysis. A three-dimensional, ...