JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
64967003.pdf899.19 kB
Other TitleFundamental Study on a Jet Noise Reduction Device
Author(jpn)石井, 達哉; 生沼, 秀司; 田中, 望; 大庭, 芳則; 大石, 勉
Author(eng)Ishii, Tatsuya; Oinuma, Hideshi; Tanaka, Nozomi; Oba, Yoshinori; Oishi, Tsutomu
Author Affiliation(jpn)宇宙航空研究開発機構; 宇宙航空研究開発機構; IHI; IHI; IHI
Author Affiliation(eng)Japan Aerospace Exploration Agency (JAXA); Japan Aerospace Exploration Agency (JAXA); IHI; IHI; IHI
Issue Date2011-02-28
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA special publication: Proceedings of 42nd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2010
宇宙航空研究開発機構特別資料: 第42回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2010 論文集
Publication date2011-02-28
AbstractThis paper describes fundamental study on a new jet noise reduction device, a notched nozzle. The notch, a small V-shaped dip at the edge of a nozzle, is expected to control shear layer development and suppress both jet mixing noise and high-frequency self noise. A scaled model of the 18-notched nozzle is designed based on computational prediction and experimentally investigated together with a typical chevron nozzle is an anechoic facility. The revised notched nozzle provided a balanced noise reduction performance compared to the former version. A pressure rake downstream of the nozzle showed the wavy pattern of shear layer caused by the notch as well as the chevron nozzle.
DescriptionOriginal contains color illustrations
Meeting Information: 42nd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2010 (June 24-25, 2010. Yonago Convention Center BiG SHiP), Yonago, Tottori Japan
形態: カラー図版あり
会議情報: 第42回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2010 (2010年6月24日-25日. 米子コンベンションセンター BiG SHiP)
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-10-012

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.