Nagoya University Graduate School
Nagoya University Graduate School
Nagoya University School of Engineering
Nagoya University School of Engineering
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2006論文集
雑誌名(英)
JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2006
巻
JAXA-SP-06-010
ページ
60 - 64
発行年
2006-12-01
抄録（英）
Numerical analysis of a wall jet model as a simplified representation of a slat and main wing was conducted to investigate the slat noise mechanism and its propagation. The acoustic feedback mechanism in a gap region was confirmed by frequency comparison of numerical results with theory. It was found that the gap tones propagate in two ways. One is acoustic waves which propagate directly from a sound source, and the other is acoustic waves which are reflected from a wall and refracted at the outer edge of a gap flow. Moreover, it was found that the gap tones have a directivity.
スラット騒音の発生機構と伝播に関する数値解析
63154012.pdf
(1.27MB)
