National Aerospace Laboratory Aircraft Propulsion Research Center
National Aerospace Laboratory Aircraft Propulsion Research Center
National Aerospace Laboratory Aircraft Propulsion Research Center
National Aerospace Laboratory Aircraft Propulsion Research Center
National Aerospace Laboratory Aircraft Propulsion Research Center
出版者
航空宇宙技術研究所
出版者（英）
National Aerospace Laboratory (NAL)
雑誌名
航空宇宙技術研究所特別資料
雑誌名(英)
Special Publication of National Aerospace Laboratory
This paper describes the recent research activities on aircraft engine noise reduction in National Aerospace Laboratory. The main topics of studies are active noise control of ducted fan noise and supersonic jet noise suppression by tab-mixers and acoustically treated ejector. The effects of these noise reduction techniques have been investigated through the laboratory tests. In order to demonstrate the possibilities of these techniques to a real aircraft engine, a demonstration test using micro gas turbine engine has newly started.
航空エンジン低騒音化技術に関する開発研究
