Noise reduction mechanisms of active noise barriers

• Main Authors: Chen, Weisong, Min, Hequn, Qiu, Xiaojun
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Aeronautical engineering
• Online Access: https://hdl.handle.net/10356/96931; http://hdl.handle.net/10220/10693
• Institution: Nanyang Technological University

The sound field and acoustic power flow from different regions around an active noise barrier are analyzed using a two-dimensional numerical model. Results show that the noise reduction of the active noise barrier can be described as a combination of three mechanisms. They are acoustic energy transf...