On sound absorption in two-phase systems

✍ Scribed by S.O. Gladkov

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 388 KB
• Volume: 167
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(90)90107-6

✦ Synopsis

The scattering of an external acoustic wave in a two-phase system is considered. For such a system respective coefficients of attenuation of the energy of acoustic waves have been computed. It is predicted that in such substances a high absorption of sound and an increase of absorption cross-section in a certain range of pressures in the liquid phase is possible. The problem of the scattering of sound in a structure similar to paper, comprising a chaotic succession of fibers and free volumes, has also been examined. It is shown that the porosity is a major characteristic of such substance.