https://doi.org/10.1140/epjb/e2003-00158-7
Scattering of a sound wave by a vibrating surface
Laboratoire de Physique Statistique, École Normale
Supérieure (UMR 8550) , 24, rue Lhomond, 75005 Paris, France
Corresponding author: a fauve@physique.ens.fr
Received:
2
December
2002
Revised:
27
March
2003
Published online:
4
June
2003
We report an experimental study of the scattering
of a sound wave of frequency f by a surface vibrating at frequency
F. Both the Doppler shift at the vibrating surface and acoustic
nonlinearities in the bulk of the fluid, generate the frequencies 
(n integer) in the spectrum of the scattered wave.
We show that these two contributions can be separated because they
scale differently with respect to the vibration frequency and to the
distance between the vibrating scatterer and the detector. We
determine the parameter ranges in which one or the other mechanism dominates
and present quantitative studies of these two regimes.
PACS: 43.25.+y – Nonlinear acoustics / 43.20.Fn – Scattering of acoustic waves / 43.58.+z – Acoustical measurements and instrumentation
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
