Volume 140, Number 4, November 2022
|Number of page(s)||5|
|Section||Fluid and nonlinear dynamics|
|Published online||25 November 2022|
Statistics of phase fluctuations of an acoustic wave propagating through a turbulent flow
1 Laboratoire de Physique de l'École Normale Supérieure, CNRS, PSL Research University, Sorbonne Université, Université de Paris - F-75005 Paris, France
2 PMMH, CNRS, ESPCI Paris, Université PSL, Sorbonne Université, Université Paris-Cité - 75005 Paris, France
(a) E-mail: firstname.lastname@example.org (corresponding author)
Received: 16 August 2022
Accepted: 14 November 2022
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 Kármán 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.
© 2022 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.