Prediction of flow noise from multiple spoilers in air ducts

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

Abstract

Flow noise is noise produced by the interaction of turbulent air flow and in-duct elements such as dampers, sensors, bends, transition pieces, duct corners, branch points, or even splitter attenuators in ventilation ductwork systems. Accurate prediction of flow noise from these in-duct elements is of importance in the design of ductwork systems. Previous works on flow noise prediction and measurement in air ducts will be reviewed in this paper. Previous works conducted by the author and his co-investigators provides a prediction method based on experimental data. In this paper, Computational Fluid Dynamics (CFD) method will be used to compute the mean pressure drop across spoilers and the fluctuating drag forces acting on induct flow spoilers. A method for the prediction of flow noise from multiple in-duct spoilers using CFD will be proposed.
Original languageEnglish
Title of host publication20th International Congress on Sound and Vibration 2013, ICSV 2013
PublisherInternational Institute of Acoustics and Vibrations
Pages691-697
Number of pages7
Publication statusPublished - 1 Jan 2013
Event20th International Congress on Sound and Vibration 2013, ICSV 2013 - Bangkok, Thailand
Duration: 7 Jul 201311 Jul 2013

Conference

Conference20th International Congress on Sound and Vibration 2013, ICSV 2013
CountryThailand
CityBangkok
Period7/07/1311/07/13

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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