Annotation
The propagation of acoustic waves and beams of high intensity in viscoelastic media containing a gas cavity is considered. The response of such medium to the external acoustic impact differs in various frequency-dependent effects and complex temporal dependence, in particular of resonance and relaxation type. The behavior of viscoelastic material in this medium is of a relaxation nature, carrying the memory of the impact in the previous moments of time. The dynamics of internal elements, inclusions and cavities can have a clearly resonant character. The transformation of time profiles and the transverse structure of the beams propagating in such environments with complex internal dynamics is Calculated.
Received: 2017 July 8
Approved: 2017 October 17
PACS:
43.25.+y Nonlinear acoustics
47.55.dd Bubble dynamics
47.40.Nm Shock wave interactions and shock effects
43.30.+m Underwater sound
47.55.dd Bubble dynamics
47.40.Nm Shock wave interactions and shock effects
43.30.+m Underwater sound
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
V. A. Gusev
$^1$Department of General Nuclear Physics, Faculty of physics, Lomonosov Moscow State University
$^1$Department of General Nuclear Physics, Faculty of physics, Lomonosov Moscow State University