Design and development of an oscillating system for 2-D wing models

Authors :: Kikuchi, Takao
Source :: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory. 1403:1-12
Publication Year :: 2000
Publisher :: 航空宇宙技術研究所, 2000.
Abstract: 低速風洞で振動翼まわりの非定常流れ現象を調べるために斬新なデザインを行った2次元翼模型加振装置を開発した。本装置の特徴は、3台のモータをパソコンで制御することにより最大8Hzの擬似正弦波加振ができるとともに、翼模型の平均仰角、振動振幅、振動数を自動的に変更可能にしている点にある。<br />To investigate the unsteady flow characteristics of the oscillating two-dimensional wing, an innovative mechanism to drive two-dimensional wing models was developed. The major design concepts of the system are: (1) quasi-harmonic pitching oscillation up to frequency of 8 Hz via three electric motors controlled by the personal computer; and (2) the mean-angles of attack, the amplitude and the frequencies can be changed automatically. The system is used for the flow visualization in a low wind tunnel to view the unsteady flow patterns around an oscillating two-dimensional wing model.<br />資料番号: AA0001991000<br />レポート番号: NAL TR-1403