JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
Other TitleEffects of Slat Position on the Slat Noise Characteristics
Author(jpn)雨宮, 和久; 村山, 光宏; 山本, 一臣; 平井, 亨; 田中, 健太郎; 池田, 友明
Author(eng)Amemiya, Kazuhisa; Murayama, Mitsuhiro; Yamamoto, Kazuomi; Hirai, Toru; Tanaka, Kentaro; Ikeda, Tomoaki
Author Affiliation(jpn)株式会社エイ・エス・アイ総研; 宇宙航空研究開発機構(JAXA); 宇宙航空研究開発機構(JAXA); 株式会社菱友システムズ; 株式会社菱友システムズ; 宇宙航空研究開発機構(JAXA)
Author Affiliation(eng)Advanced Science & Intelligence Research Institute (ASIRI); Japan Aerospace Exploration Agency (JAXA); Japan Aerospace Exploration Agency (JAXA); Ryoyu Systems Co., Ltd.; Ryoyu Systems Co., Ltd.; Japan Aerospace Exploration Agency (JAXA)
Issue Date2019-02-25
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料: 第50回流体力学講演会/第36回航空宇宙数値シミュレーション技術シンポジウム論文集
JAXA Special Publication: Proceedings of the 50th Fluid Dynamics Conference / the 36th Aerospace Numerical Simulation Symposium
Start page183
End page188
Publication date2019-02-25
AbstractIn this study, effect of leading-edge slat position on the slat noise characteristics is investigated by aeroacoustic simulations using Delayed Detached Eddy Simulation toward slat noise reduction. Previous studies indicated that smaller recirculation region in the slat cove with increasing angle of attack results in decrease of broadband noise and narrowband peaks (NBPs). To achieve smaller recirculation region in the slat cove at a target angle of attack, the overlap between slat and main wing is changed. From the analysis of far-field sound pressure, it is found that low frequency broadband fluctuation and NBPs decrease, and the overall sound-pressure levels is significantly reduced especially in the direction of the lower surface side as a result of the noise reduction of slat itself.
Description会議情報: 第50回流体力学講演会/第36回航空宇宙数値シミュレーション技術シンポジウム (2018年7月4日-6日. 宮崎市民プラザ), 宮崎市, 宮崎
形態: カラー図版あり
Meeting Information: 50th Fluid Dynamics Conference /the 36th Aerospace Numerical Simulation Symposium (July 4-6, 2018. Miyazaki Citizen's Plaza), Miyazaki, Japan
Physical characteristics: Original contains color illustrations
Document TypeConference Paper
JAXA Category特別資料
NASA Subject CategoryFluid Mechanics and Thermodynamics
Report NoJAXA-SP-18-005

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