Fan noise control by a flexible casing structure

Z. B. Wang, Yat Sze Choy, Q. Xi

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


The work presented here examines the performance and effectiveness of fan noise control in a duct by using light panels with backing cavity. The method aims to suppress the low-frequency noise by destructive interference between the acoustic field in the duct and sound radiation from the panel. A three-dimensional numerical model is established to investigate the details of flow-structure interaction and its influence on the fan noise suppression. The aerodynamic characteristics near the fan blades and the vibration of the flexible structure also plays an important role in the noise suppression. The findings of this study will provide an alternative method of fan noise abatement focusing on the source.
Original languageEnglish
Title of host publicationFluid-Structure-Sound Interactions and Control - Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control
PublisherSpringer Heidelberg
Number of pages6
ISBN (Print)9783662488669
Publication statusPublished - 1 Jan 2016
Event3rd Symposium on Fluid-Structure-Sound Interactions and Control,FSSIC 2015 - Perth, Australia
Duration: 5 Jul 20179 Jul 2017

Publication series

NameLecture Notes in Mechanical Engineering
VolumePart F3
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


Conference3rd Symposium on Fluid-Structure-Sound Interactions and Control,FSSIC 2015


  • Fan noise
  • Flexible structure
  • Flow-structure interaction

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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