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タイトル: 小型プロペラ風車の出力特性と広帯域騒音に関する研究
その他のタイトル: Study of Output Characteristics and Broadband Noise of a Micro Propeller Wind Turbine
著者: 佐々木, 壮一 / 鈴木, 康太 / 坂田, 涼
著者(別表記) : Sasaki, Soichi / Suzuki, Kota / Sakada, Ryo
発行日: 2014年 1月
出版者: 長崎大学大学院工学研究科 / Graduate School of Engineering, Nagasaki University
引用: 長崎大学大学院工学研究科研究報告, 44(82), pp.1-6; 2014
抄録: In order to clarify the influence of the flow regime around the impeller on the broadband noise in the high frequency domain generated by a micro propeller wind turbine, the flow around the impeller was solved by the numerical simulation. Furthermore, the output characteristics and the aerodynamic noise of the turbine were measured by a wind tunnel. From comparison in the free torque condition, the noise of the tip speed ratio 12 became 7.6 dB larger than the noise of the tip speed ratio 8.2 due to the broadband noise in the high frequency domain. Because the flow was separated at the vicinity of the leading edge from the hub side to mid-span, the aerodynamic noise was concentrated at the leading edge, whereas the noise source of the blade tip side concentrated to the trailing edge side because the flow was attached to the blade. These results indicate that these perturbations in the high frequency domain become one of the important factors for the broadband noise source of the wind turbine.
キーワード: Wind Turbine / Aerodynamic Noise / Wind Energy
URI: http://hdl.handle.net/10069/34170
ISSN: 18805574
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher
出現コレクション:第44巻 第82号

引用URI : http://hdl.handle.net/10069/34170



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