Numerical and experimental investigation of aeroacoustic damping characteristics of perforated orifices

• Main Author: Ji, Chenzhen
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Theses and Dissertations
• Language: English
• Published: 2016
• Subjects: DRNTU::Engineering::Aeronautical engineering
• Online Access: http://hdl.handle.net/10356/65968
• Institution: Nanyang Technological University

Acoustic liners perforated with thousands of millimeter-size circular orifices are widely used on aero-engines as an effective noise damper. To investigate and optimize the aeroacoustic damping behavior of these perforated liners, numerical simulations of in-duct orifices are performed first. For this,...