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Seismic wave attenuation and dispersion due to wave-induced fluid flow in rocks with strong permeability fluctuations
(Acoustical Society of America Institute of Physics, 2013-06)
Oscillatory fluid movements in heterogeneous porous rocks induced by seismic waves cause dissipation of wave field energy. The resulting seismic signature depends not only on the rock compressibility distribution, but also ...
Digital image correlation applied to the calculation of the out-of-plane deformation induced by the formation of roll waves in a non-Newtonian fluid
(Spie-Soc Photo-Optical Instrumentation Engineers, 2016)
A method based on digital image correlation (DIC) is implemented for measuring the height of the roll waves developed in a non-Newtonian fluid flowing on an inclined channel. A projector and a high-resolution digital camera, ...
Surface waves propagating on a turbulent flow
(AMER INST PHYSICS, 2016)
We study the propagation of monochromatic surface waves on a turbulent flow of liquid metal, when
the waves are much less energetic than the background flow. Electromagnetic forcing drives quasitwo-
dimensional turbulence ...
Acoustics of partially saturated rocks: Theory and experiments
(Elsevier, 2015)
The presence of fluids in the pore space of rocks causes wave attenuation and dispersion by the mechanism broadly known as wave-induced fluid flow (WIFF). WIFF occurs as a seismic wave creates pressure gradients within the ...
An energy-based approach to estimate seismic attenuation due to wave-induced fluid flow in heterogeneous poroelastic media
(Wiley Blackwell Publishing, Inc, 2016-11)
Wave-induced fluid flow (WIFF) due to the presence of mesoscopic heterogeneities is considered as one of the main seismic attenuation mechanisms in the shallower parts of the Earth's crust. For this reason, several models ...