Aeroacoustic source analysis in a corrugated flow pipe
| Autor: | Pierre-Olivier Mattei, Daniel Mazzoni, Pinhède, C., Amielh, M., Anselmet, F., Jiang, Y., Kristiansen, U. |
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| Přispěvatelé: | Laboratoire de Mécanique et d'Acoustique [Marseille] (LMA ), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), NTNU Acoustics Research Center, Norwegian University of Science and Technology [Trondheim] (NTNU), Norwegian University of Science and Technology (NTNU)-Norwegian University of Science and Technology (NTNU), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM), Mattei, Pierre-Olivier |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Vibration Shocks and Noise (VISHNO) 2014 Vibration Shocks and Noise (VISHNO) 2014, Jun 2014, Aix en Provence, France HAL |
| Popis: | International audience; This study is focused on a phenomenon often encountered in flow carrying pipes, since flow instabilities caused by geometric features may generate acoustic signals and thereafter interact with these signals in such a way that powerful pure tones are produced. A modern example is found in the so-called " singing risers " , or the gas pipes connecting gas production platforms to the transport network. But the flow generated resonance in a fully corrugated circular pipe may be silenced by the addition of relatively low frequency flow oscillations induced by an acoustic generator. Experiments reported here, aimed at investigating in more detail the coupling between the flow in the pipe, the acoustically generated flow oscillations and the emitted resulting noise, are performed in a specifically designed facility |
| Databáze: | OpenAIRE |
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