An experimental study on self-output-control characteristics of micro downwind rotor with coning soft blades  

作　　者：EGUCHI Hidenori YOSHIDA Kouichi NISHI Michihiro 

机构地区：[1]Sophia Engineering CO.,Ltd.,Kikugaoka 1-15-25,Kokuraminami,Kitakyushu 802-0981,Japan [2]Mechanical Engineering Department,Kyushu Institute of Technology,Sensui-cho 1,Tobata,Kitakyushu 804-8550,Japan [3]Senior Academy,Kyushu Institute of Technology,Sensui-cho 1,Tobata,Kitakyushu 804-8550,Japan

出　　处：《Science China(Technological Sciences)》2010年第1期100-104,共5页中国科学（技术科学英文版）

摘　　要：In this short paper,we have treated the aerodynamic performance of micro downwind rotor with coning soft blades experimentally.The test wind 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,it is realized that the performance is manageable by the coning angle of the rotor blade.In the present case,an improvement of the performance in lower wind speeds is achieved by using the coning blade of 20°.Besides,owing to the torsional deformation of very soft blade,the self-power control characteristic is observed in every test rotor regardless of coning angle in the range of 0°-20° under the wind speed less than 12 m/s.In this short paper,we have treated the aerodynamic performance of micro downwind rotor with coning soft blades experimentally.The test wind 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,it is realized that the performance is manageable by the coning angle of the rotor blade.In the present case,an improvement of the performance in lower wind speeds is achieved by using the coning blade of 20°.Besides,owing to the torsional deformation of very soft blade,the self-power control characteristic is observed in every test rotor regardless of coning angle in the range of 0°-20° under the wind speed less than 12 m/s.

关 键 词：MICRO wind turbine downwind self-output-control CONING angle SOFT blade aerodynamic performance 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]