Abstract:
We present a study of sound propagation through a single vortex by direct numerical simulations (DNS) compared to experimental measurements. We analyse the amplitude and the phase shift of the sound wave when it interacts with the vortical flow and we display the focusing effects produced by the vortex. We show that the turbulent fluctuations have a little effect on the sound phase shift whereas they induce a strong defocusing effect on the sound amplitude.
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Received 9 October 2002 / Received in final form 20 January 2003 Published online 1st April 2003
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ID="a"e-mail: rberthet@lps.ens.fr
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ID="b"UMR CNRS 8550
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Berthet, R., Fauve, S. & Labbé, R. Study of the sound-vortex interaction: direct numerical simulations and experimental results. Eur. Phys. J. B 32, 237–242 (2003). https://doi.org/10.1140/epjb/e2003-00093-7
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DOI: https://doi.org/10.1140/epjb/e2003-00093-7