Hydraulic turbine distributor simulation using OpenFOAM Fifth OpenFOAM Workshop, June 21-24 2010, Gothenburg, Sweden 1 F.Guibault , C. Devals and J-F Dubé École Polytechnique de Montréal, Canada T. Vu and B. Nenneman Andritz Hydro, Pointe-Claire, Canada
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Hydraulic turbine distributor simulation
using OpenFOAM
Fifth OpenFOAM Workshop, June 21-24 2010, Gothenburg, Sweden
1
F.Guibault, C. Devals and J-F DubéÉcole Polytechnique de Montréal, Canada
T. Vu and B. NennemanAndritz Hydro, Pointe-Claire, Canada
Context
Viscous flow simulations for hydraulic turbomachinery design
Spiral
Stator
Rotor
2
Runner
Draft-tube
Spiral casing
Distributor
Objectives
• Validate OpenFOAM RANS simulations for distributor blade passage in tandem mode on hybrid meshes
• Validate periodic boundary conditions• Predict torque on guide vanes for the full range of blade
openings• Compare torque prediction with experimental data
3
• Compare torque prediction with experimental data
laplacianSchemes� default none� laplacian(nuEff,U) Gauss linear corrected� laplacian((1|A(U)),p) Gauss linear corrected� laplacian(DkEff,k) Gauss linear corrected� laplacian(DepsilonEff,epsilon) Gauss linear corrected� laplacian(DREff,R) Gauss linear corrected� laplacian(DnuTildaEff,nuTilda) Gauss linear corrected