Measurements of the Aerodynamic Normal Forces on a 12-kW Straight-Bladed Vertical Axis Wind Turbine

Energies

Eduard Dyachuk¹  Morgan Rossander²  Anders Goude²  Hans Bernhoff² 

[1] Division of Electricity, Department of Engineering Sciences, Uppsala University, Box 534, Uppsala 751 21, Sweden;

关键词: vertical axis turbine;    wind turbine;    force;    measurement;    accuracy;    normal force;    H-rotor;    blades;   

DOI  :  10.3390/en8088482

来源: mdpi

【 摘 要 】

The knowledge of unsteady forces is necessary when designing vertical axis wind turbines (VAWTs). Measurement data for turbines operating at an open site are still very limited. The data obtained from wind tunnels or towing tanks can be used, but have limited applicability when designing large-scale VAWTs. This study presents experimental data on the normal forces of a 12-kW straight-bladed VAWT operated at an open site north of Uppsala, Sweden. The normal forces are measured with four single-axis load cells. The data are obtained for a wide range of tip speed ratios: from 1.7 to 4.6. The behavior of the normal forces is analyzed. The presented data can be used in validations of aerodynamic models and the mechanical design for VAWTs.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.