Near- and far-field acoustic measurements for stepped nozzles at over- and perfectly-expanded supersonic jet flow conditions

• Main Authors: Wei, X. F., Chua, Leok Poh, Lu, Zibao, Lim, Desmond Haoxiang, Mariani, Raffaello, Cui, Yi Dan, New, Tze How
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Mechanical engineering; Supersonic Jets; Jet Noise
• Online Access: https://hdl.handle.net/10356/155770
• Institution: Nanyang Technological University

Detailed near- and far-field acoustic measurements were conducted for two circular stepped nozzles with 30 deg and 60 deg design inclinations at over- and perfectly-expanded supersonic jet flow conditions and compared to those for a circular nonstepped nozzle. Far-field acoustic results show that st...