Samenvatting
Low frequency fl
ow 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 in
uencing 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
Originele taal-2 | Engels |
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Titel | 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), 11-13 May 2009, Miami, FL, USA |
Aantal pagina's | 17 |
Status | Gepubliceerd - 2009 |
Evenement | 15th AIAA/CEAS Aeroacoustics Conference, May 11-13, 2009, Miami, FL, USA - Miami, FL, Verenigde Staten van Amerika Duur: 11 mei 2009 → 13 mei 2009 |
Congres
Congres | 15th AIAA/CEAS Aeroacoustics Conference, May 11-13, 2009, Miami, FL, USA |
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Land/Regio | Verenigde Staten van Amerika |
Stad | Miami, FL |
Periode | 11/05/09 → 13/05/09 |
Ander | 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference) |