2010/11/29 by Ulf R. Kristiansen, Pierre-Olivier Mattei, Pierre‐Olivier Mattei +6
Engineering · Physics and Astronomy · #Acoustic Wave Phenomena Research #Aerodynamics and Acoustics in Jet Flows #Classical Physics (physics.class-ph) #FOS: Physical sciences #Flow Measurement and Analysis #Fluid Dynamics and Vibration Analysis #Water Systems and Optimization #physics.class-ph
paper · pdf · doi:10.48550/arxiv.1011.6150
Proceedings of the 34th Scandinavian Symposium on Physical Acoustics, Geilo, Norway, 30 January - 2 February 2011. ISBN 978-82-8123-004-0., 2011
openalex publication_date 2010/11/29 · arxiv created 2011/06/06 · arxiv updated 2011/06/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.