Self-sustained Aeroacoustic Oscillations in Multiple Side-Branch Pipe Systems

D. Tonon, G. Nakiboǧlu, J.F.H. Willems, A. Hirschberg, R.E. Leandro, W. Polifke

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

13 Citations (Scopus)

Abstract

Low frequency flow excited acoustic resonances have been observed in the pipe network of a compressor station. These pulsations have been identified as aeroacoustic oscillations sustained by the instability of the grazing flow along closed side branches of the pipe system. The investigation of this phenomenon is carried out on a scale model. Since the scale model shows an acoustic behavior similar to the compressor station it is used in order to characterize some of the design parameters that are influencing the aeroacoustic behavior of the pipe network. These parameters are the shape of the edges at the junction between the side branches and the main pipe, the depth of the side branches and the geometrical symmetry of the system. The resonance modes of the pipe network are predicted by means of a plane wave acoustic model. A model for the evaluation of the global maximum pulsation amplitude from the knowledge of a local maximum pulsation amplitude is then presented.
Original languageEnglish
Title of host publicationProceedings of the 15th AIAA/CEAS Aeroacoustic Conference 2009
Place of PublicationReston VA, USA
PublisherAmerican Institute of Aeronautics and Astronautics
Number of pages17
ISBN (Print)1-56347-974-5
DOIs
Publication statusPublished - 1 May 2009
Externally publishedYes
Event15th AIAA/CEAS Aeroacoustic Conference 2009: (30th AIAA Aeroacoustics Conference) - Miami, United States
Duration: 11 May 200913 May 2009
Conference number: 15

Conference

Conference15th AIAA/CEAS Aeroacoustic Conference 2009
Country/TerritoryUnited States
CityMiami
Period11/05/0913/05/09

Keywords

  • n/a OA procedure

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