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arXiv · 2211.09264

Statistics of phase fluctuations of an acoustic wave propagating through a turbulent flow

Gaurav Prabhudesai·Stephane Perrard·Francois Petrelis·Stephan Fauve
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Abstract

We investigate the statistics of phase fluctuations of an acoustic wave propagating through a turbulent flow in line of sight (LOS) configuration. Experiments are performed on a closed von Karman swirling flow whose boundaries are maintained at a constant temperature. In particular, we analyze the root mean square (RMS) and the power spectrum density (PSD) of phase fluctuations. A model is developed and analytical predictions obtained for these quantities using geometrical acoustics are shown to be in agreement with experimental observations.

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Gaurav Prabhudesai, Stephane Perrard, Francois Petrelis, Stephan Fauve. 2022-11-16. Statistics of phase fluctuations of an acoustic wave propagating through a turbulent flow. https://doi.org/10.1209/0295-5075%2Faca25f

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