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RESEARCH PRODUCT
Numerical and experimental investigation of a cross-flow water turbine
Marco SinagraTullio TucciarelliVincenzo SammartanoGabriele Morrealesubject
Water turbine020209 energyFlow (psychology)experimental facility02 engineering and technology010501 environmental sciences01 natural sciencesTurbinehydraulic modelSettore ICAR/01 - IdraulicaPhysics::Fluid Dynamics0202 electrical engineering electronic engineering information engineeringShear stressBoundary value problem0105 earth and related environmental sciencesWater Science and TechnologyCivil and Structural EngineeringTurbulenceMechanicshydraulics of renewable energy systemhydraulic machinery designCross-flow turbine; experimental facility; hydraulic machinery design; hydraulic model; hydraulics of renewable energy systems; RANS modelCross-flow turbineRANS modelEnvironmental scienceCross-flow turbineReynolds-averaged Navier–Stokes equationsdescription
ABSTRACTA numerical and experimental study was carried out for validation of a previously proposed design criterion for a cross-flow turbine and a new semi-empirical formula linking inlet velocity to inlet pressure. An experimental test stand was designed to conduct a series of experiments and to measure the efficiency of the turbine designed based on the proposed criterion. The experimental efficiency was compared to that from numerical simulations performed using a RANS model with a shear stress transport (SST) turbulence closure. The proposed semi-empirical velocity formula was also validated against the numerical solutions for cross-flow turbines with different geometries and boundary conditions. The results confirmed the previous hydrodynamic analysis and thus can be employed in the design of the cross-flow turbines as well as for reducing the number of simulations needed to optimize the turbine geometry.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-16 |