Numerical Analysis of Aerodynamic Performance of a Fixed-Pitch Vertical Axis Wind Turbine Rotor

• Autorzy: Rogowski Krzysztof , Michna Jan , Ferreira Carlos

Identyfikatory

DOI

10.12913/22998624/191128

• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to assess the accuracy of predicting the aerodynamic loads and investigate the aerodynamic wake characteristics of a vertical axis wind turbine (VAWT) rotor using a simplified two-dimensional numerical rotor model and an advanced numerical approach - the Scale Adaptive Simulation (SAS) coupled with the four-equation γ-Re_θ turbulence model. The challenge for this approach lies in the operating conditions of the rotor, the blade pitch angles, and the very small geometric dimensions of the rotor. The rotor, with a diameter of 0.3m, operates at a low tip speed ratio of 2.5 and an extremely low blade Reynolds number of approximately 22,000, whereas the pitch angles, β, are: -10, 0, and 10 degrees. Validation was conducted based on high-fidelity measurements obtained using the PIV technique at TU Delft. The obtained results of rotor loads and velocity profiles are surprisingly reliable for cases of β=0° and β=-10°. However, the 2-D model is too imprecise to estimate both aerodynamic loads and velocity fields accurately.

Słowa kluczowe

EN

wind turbine; VAWT; Darrieus type turbine; aerodynamics; RANS; scale adaptive simulation; turbulence

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2024
• Tom: Vol. 18, no 6
• Strony: 97--109
• Opis fizyczny: Bibliogr. 25 poz., fig., tab.

Twórcy

autor

Rogowski Krzysztof

• Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, Nowowiejska 24, 00-665 Warsaw, Poland

• https://orcid.org/0000-0003-2349-7403

autor

Michna Jan

• Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, Nowowiejska 24, 00-665 Warsaw, Poland

autor

Ferreira Carlos

• Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands

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