Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010geoji.182.1043p&link_type=abstract
Geophysical Journal International, Volume 182, Issue 2, pp. 1043-1057.
Astronomy and Astrophysics
Astronomy
1
Permeability And Porosity, Seismic Attenuation, Theoretical Seismology, Wave Scattering And Diffraction, Wave Propagation
Scientific paper
To investigate the behaviour of seismic wave propagation in natural rocks and soils, a model for the elastic properties of a heterogeneous porous medium containing uniform fluid inclusions is useful. The problem has already been addressed before, utilizing Biot's theory of poroelasticity, and there have been some analytical and numerical results obtained for the different types of cavities. However, as it is shown in this paper, immediate passage within heterogeneous porous media from spherical porous heterogeneities to continuous fluid or solid inclusions cannot be performed on the basis of previously developed models. In this paper, we extend the results for wave scattering in porous media due to a random ensemble of spherical porous inclusions to allow for continuous fluid inclusions instead. To consider this case, we first obtain the single scattering series. Then we utilize multiple scattering theory to find the effective wavenumber due to an ensemble of inclusions. Our results make it possible to analyse wave attenuation and velocity dispersion at low frequencies due to the presence of entirely fluid inclusion heterogeneities within a porous material. Explicit analytical expressions for solution of single scattering problem for a fluid cavity, and effective propagation velocity and attenuation factor in a porous medium with random ensemble of these cavities constitute main results of this work.
Nagornov Oleg V.
Ponomarev Dmitry V.
No associations
LandOfFree
On effective characteristics of wave propagation in a porous fluid-saturated medium containing entirely fluid inclusions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On effective characteristics of wave propagation in a porous fluid-saturated medium containing entirely fluid inclusions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On effective characteristics of wave propagation in a porous fluid-saturated medium containing entirely fluid inclusions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-980156