| HAL : hal-00540390, version 2 |
| arXiv : 1011.6150 |
| Fiche détaillée | Récupérer au format |
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| Versions disponibles : | v1 (29-11-2010) | v2 (06-06-2011) |
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| Measurements on tones generated in a corrugated flow pipe with special attention to the influence of a low frequency oscillation. |
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| Ulf R. Kristiansen 1Pierre-Olivier Mattei 2 |
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| (18/11/2010) |
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| It is well known that an air flow in a corrugated pipe might excite the longitudinal acoustic modes of the pipe. In this letter is reported experiments where a low frequency, oscillating flow with velocity magnitudes of the same order as the air flow has been added. Depending on the oscillation strength, it might silence the pipe or move the resonances to higher harmonics. It is also shown that a low frequency oscillation by itself might excite a higher frequency acoustic resonance of the pipe. |
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| 1 : | Acoustics Research Center |
| Norges Teknisk-Naturvitenskapelige Universitet | |
| 2 : | Laboratoire de Mécanique et d'Acoustique (LMA) |
| CNRS : UPR7051 | |
| 3 : | Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE) |
| CNRS : UMR6594 – Université de Provence - Aix-Marseille I – Université de la Méditerranée - Aix-Marseille II – Ecole Centrale de Marseille | |
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| Domaine | : | Sciences de l'ingénieur/Acoustique Physique/Mécanique/Acoustique |
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| Singing Risers – acoustic control – flow excitation |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00540390, version 2 | |
| http://hal.archives-ouvertes.fr/hal-00540390 | |
| oai:hal.archives-ouvertes.fr:hal-00540390 | |
| Contributeur : Pierre-Olivier Mattei | |
| Soumis le : Lundi 6 Juin 2011, 10:00:02 | |
| Dernière modification le : Lundi 6 Juin 2011, 10:14:47 | |