Journal of Fluid Science and Technology
Online ISSN : 1880-5558
ISSN-L : 1880-5558
Papers
Development of Micro Downwind Turbine Generator Having Soft Blades
Kouichi YOSHIDAXianwu LUOShuhong LIUHidenori EGUCHIMichihiro NISHI
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ジャーナル フリー

2011 年 6 巻 3 号 p. 313-321

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As there are frequent needs to install a micro wind turbine generator in a residential area, we have developed such a downwind-type turbine rotor having the following specifications: The rotor has the tip diameter of 1.5 m and three two-dimensional NACA0018 blades of 0.15 m chord whose material is light, soft and pliable foam plastic for perfect safety. From the wind tunnel test under the wind speed less than 14 m/s, it is clarified that the downwind turbine generator having soft blades has the low noise and the self-output-control characteristics, which are regarded as favorable for its actual operation. The latter feature is primarily attributed to bending and torsional elastic-deformation of the soft blade. The remarkable aerodynamic performances are summarized in this paper.

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© 2011 by The Japan Society of Mechanical Engineers
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