Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Approximate aerodynamic analysis for multi-blade darrieus wind turbines
Abstract An approximate analysis, which is based on the assumption of constant aerodynamic coefficients and the thigonometry of small angles, is presented. The analysis produces a performance model which consists of a series of closed-form equations. A result of the analysis is an interference factor which varies with the azimuthal angle. The model is valid for any number of blades up to six. The model predicts a power coefficient which agrees fairly well with experimental data and other models. The region of validity for the model is from the cut-in speed to rotor stall. The model predicts a variation in the upwind and downwind blade normal force. The model also predicts a power coefficient which is relatively constant with planform shape.
Approximate aerodynamic analysis for multi-blade darrieus wind turbines
Abstract An approximate analysis, which is based on the assumption of constant aerodynamic coefficients and the thigonometry of small angles, is presented. The analysis produces a performance model which consists of a series of closed-form equations. A result of the analysis is an interference factor which varies with the azimuthal angle. The model is valid for any number of blades up to six. The model predicts a power coefficient which agrees fairly well with experimental data and other models. The region of validity for the model is from the cut-in speed to rotor stall. The model predicts a variation in the upwind and downwind blade normal force. The model also predicts a power coefficient which is relatively constant with planform shape.
Approximate aerodynamic analysis for multi-blade darrieus wind turbines
William Beans, E. (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 25 ; 131-150
22.04.1986
20 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| BASE | 2015
Study Experimental Darrieus Type-H Water Turbines Using NACA 2415 Standard Hydrofoil Blade
| BASE | 2021
Aerodynamic noise from wind turbines and rotor blade modification
| British Library Conference Proceedings | 1996