タイトル | Study on self-exited oscillation and structure of pseudo-shock waves of asymmetric supersonic jet |
その他のタイトル | 非対称超音速ジェットの擬衝撃波の自励振動と構造の研究 |
著者(日) | Liu, Yu; 児島 忠倫; 前田 大輔 |
著者(英) | Liu, Yu; Kojima, Tadatomo; Maeda, Daisuke |
著者所属(日) | 近畿大学 大学院工業技術研究科; 近畿大学 工学部 システムデザイン工学科; 東洋アルミニウム |
著者所属(英) | Kinki University Graduate School of Industrial Technology; Kinki University Department of System Design Engineering, School of Engineering; Toyo Aluminum K. K. |
発行日 | 2002-12-20 |
発行機関など | School of Engineering, Kinki University 近畿大学工学部 |
刊行物名 | Research Reports of the Faculty of Engineering, Kinki University 近畿大学工学部研究報告 |
号 | 36 |
開始ページ | 139 |
終了ページ | 143 |
刊行年月日 | 2002-12-20 |
言語 | eng |
抄録 | The powerful jet noise containing discrete frequencies have been studied for the supersonic jet issuing from asymmetric nozzle with the oblique outlet. The discrete frequency noise was discussed to clarify the noise characteristics and the generation mechanism. The behavior of supersonic jet was visualized by the instantaneous shadowgraph method. The vibration of total pressure in supersonic jet was measured using the probe having the built-in pressure transducer. The frequency spectrum of total pressure was analyzed using FFT. As the result, it was found that the peak frequency of total pressure vibration was mostly in agreement with the first peak of discrete frequency noise. |
キーワード | asymmetric supersonic jet; discrete frequency noise; shock wave; flow visualization; shadowgraph photography; fluid vibration; shockwave interaction; fast Fourier transformation; 非対称超音速ジェット; 離散周波数騒音; 衝撃波; 流れの可視化; シャドーグラフ写真法; 流体振動; 衝撃波干渉; 高速フーリエ変換 |
資料種別 | Technical Report |
ISSN | 0386-491X |
SHI-NO | AA0045006004 |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/51779 |