Simulation of water turbine integrated with electrical generator

• Published in: MATEC Web of Conferences Vol. 240; p. 5002
• Main Authors: Borkowski, Dariusz, Węgiel, Michał, Ocłoñ, Paweł, Węgiel, Tomasz
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 01-01-2018
• Subjects: CAD; Computational fluid dynamics; Computer aided design; Computer simulation; Divergence; Electric generators; Fluid flow; Guide vanes; Hydroelectric power; Model testing; Permanent magnets; Turbines; Turbulence models
• ISSN: 2261-236X; 2274-7214; 2261-236X
• DOI: 10.1051/matecconf/201824005002

The paper presents the analysis of the small hydropower plant working at variable speed. The hydro-set that consists of the guide vanes and propeller turbine integrated with the permanent magnet synchronous generator is simulated by using Computational Fluid Dynamics (CFD) in Ansys Fluent v18.0. The k-ε and k-ω SST models, as well as the one-equation Spalart-Allmaras (SA) model, were tested. The comparison showed the significant divergence of the calculation results. The turbulence model selection influences the average value of the power and also the speed for which the power is maximal.