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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Aerodynamic and Performance Analysis of Drag-Driven Vertical-Axis Wind Turbines
verfasst von : Emre Alpman, Zafer Canal, İbrahim Baysal
Erschienen in: Towards 100% Renewable Energy
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Abstract
This study involves aerodynamic analysis of drag-driven wind turbines performed using the open-source computational fluid dynamics software OpenFOAM®. Numerical solutions were performed for two-space dimensions assuming that blade shapes and orientation do not change in the vertical direction. Since the solution domain contained rotating and non-rotating sections, the MRFSimpleFoam solver, which contains multiple rotating reference frames, was used for computations. Turbines with circular-arc-shaped blades were analyzed and compared for different tip speed ratios and blade number. Numerical solutions were performed for two-space dimensions assuming that blade shapes and orientation do not change in the vertical direction. Computed power coefficients were very low showing an oscillatory behavior for all cases.