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- Title
Rayleigh wave propagation along the boundary of a non-Newtonian fluid-saturated porous medium.
- Authors
Markov, M.
- Abstract
The Frenkel-Biot theory is used to study the reflection of elastic waves from the boundary of a non-Newtonian (Maxwell) fluid-saturated porous medium. The velocity and attenuation of a Rayleigh surface wave propagating along the boundary of the medium are determined. Two models of a fluid-saturated porous medium are used for calculation: with pore channels of a fixed diameter and with a lognormal distribution of pore channels in size. The results of calculations show that, when the fluid in the porous medium is characterized by a small Deborah number (i.e., exhibits non-Newtonian properties), the velocity of Rayleigh waves exhibits a considerable frequency dispersion. The results also suggest that, in principle, it is possible to estimate the Deborah number from the measured frequency dispersion of the Rayleigh wave velocity.
- Subjects
RAYLEIGH waves; FLUID dynamics; ELASTIC waves; VIBRATION (Mechanics); ACOUSTIC surface waves
- Publication
Acoustical Physics, 2006, Vol 52, Issue 4, p429
- ISSN
1063-7710
- Publication type
Article
- DOI
10.1134/S1063771006040099