Noise reduction effect of airfoil and small-scale rotor using serration trailing edge in a wind tunnel test  

作　　者：RYI Jaeha CHOI Jong-Soo 

机构地区：[1]Department of Aerospace Engineering, Chungnam National University, Daejeon 305-764, Korea

出　　处：《Science China(Technological Sciences)》2017年第2期325-332,共8页中国科学（技术科学英文版）

基　　金：supported by the Research Fund of 2014 Chungnam National University of the Korea

摘　　要：This paper discussed a noise reduction effect of airfoil and small-scale model rotor by using attached serration trailing edge in the wind tunnel test condition. In order to analyze the changes in the performance due to the inclusion of a serrated trailing edge designed to reduce noise, a 10 k W wind turbine rotor was equipped with a thin serrated trailing edge. The restrictive condition for the serrated trailing edge equipped with the using of a 2D airfoil was examined through the using of a wind tunnel experiment after studying existing restrictive condition and analyzing prior research on serrated trailing edges. The aerodynamic performance and noise reduction effect of a small-scale model were investigated with the using of a serrated trailing edge. Moreover, the noise levels from the experiment were considered that the noise prediction method could be used for a full-scale rotor. It is confirmed that noise reduction effect is compared with wind tunnel test data at the 2D airfoil and model rotor condition.

关 键 词：wind turbine rotor wind tunnel experiment wind energy trailing edge serration noise reduction effect 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TB53[理学—物理]