Experimental and theoretical studies of aeroacoustics damping performance of a bias-flow perforated orifice

• Main Authors: Zhao, Dan, Sun, Yuze, Ni, Siliang, Ji, Chenzhen, Sun, Dakun
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Mechanical engineering; Acoustic Damping; Sound Absorption
• Online Access: https://hdl.handle.net/10356/150535
• Institution: Nanyang Technological University

Aeroacoustics damping performance of an in-duct perforated orifice with a bias flow in terms of acoustic power absorption Δ and reflection χ coefficients are evaluated in this work. For this, experimental measurements of a cold-flow pipe system with a diameter of 2b with an in-duct perforated plate...