Noise and Emission Research Group, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
Aeroengine Division, National Aerospace Laboratory(NAL)
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報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-833
Difference of aero-engine fan noise levels between static and flight engine testing is due to inflow distortion and atmospheric turbulence during static engine testing. Therefore, a semi-spherical inflow control device (ICD) was developed in order to simulate flight fan noise in static tests by the reduction of inflow distortion and turbulence. Based on fundamental data acquired for design and construction of an ICD, a 4 m dia.semi-spherical ICD for actual turbo-fan engine was designed and built. Tests confirmed that it was a good flight fan noise simulator. In this report, the process of research and development of the ICD and several important results at each step are described.
球形状エンジン吸入整流装置の研究開発
naltr00833.pdf
(1.25MB)
