Numerical investigation of aeroacoustics damping performance of a Helmholtz resonator : effects of geometry, grazing and bias flow

• Main Authors: Wu, Gang, Lu, Zhengli, Xu, Xiao, Pan, Weichen, Wu, Weiwei, Li, Jun, Ci, Juan
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Mechanical engineering; Micro-cylindrical Combustor; Tuned Passive Control
• Online Access: https://hdl.handle.net/10356/151735
• Institution: Nanyang Technological University

In this work, the effects of the grazing flow and its geometric dimensions on the aeroacoustics damping performance of a Helmholtz resonator are numerically evaluated. The grazing flow tangentially passing through the neck of the resonator is characterized by Mach number. And it is varied from 0 to...