A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
P-wave Propagation in Double-Porosity Materials Saturated with Dual-Fluid
P-wave propagation in porous rock is a fundamental problem in geophysics. Both skeleton and fluid are spatially heterogeneous, which cause wave dispersion and attenuation. Here we develop a triple-layer patchy model to predict P-wave dispersion/attenuation in double-porosity materials with dual-fluid. The model consists of spherical porous inclusions embedded in a homogeneous host medium. The inclusions are homogeneous and their radii are much smaller than the wavelength but larger than the pore size (mesoscopic). The interface between inclusion and host medium is open and fluids can flow through it. The skeletons are saturated by two types of fluids. There is an interface between the inner fluid pocket and outside fluid patch. The fluid interface is independent of inclusion-host interface. Wave equations are derived following the Lagrangian formulation. Plane wave analysis is used to achieve relation between frequency and wave number. P-wave dispersion/attenuation are calculated and compared with both theoretical models and experimental data.
P-wave Propagation in Double-Porosity Materials Saturated with Dual-Fluid
P-wave propagation in porous rock is a fundamental problem in geophysics. Both skeleton and fluid are spatially heterogeneous, which cause wave dispersion and attenuation. Here we develop a triple-layer patchy model to predict P-wave dispersion/attenuation in double-porosity materials with dual-fluid. The model consists of spherical porous inclusions embedded in a homogeneous host medium. The inclusions are homogeneous and their radii are much smaller than the wavelength but larger than the pore size (mesoscopic). The interface between inclusion and host medium is open and fluids can flow through it. The skeletons are saturated by two types of fluids. There is an interface between the inner fluid pocket and outside fluid patch. The fluid interface is independent of inclusion-host interface. Wave equations are derived following the Lagrangian formulation. Plane wave analysis is used to achieve relation between frequency and wave number. P-wave dispersion/attenuation are calculated and compared with both theoretical models and experimental data.
P-wave Propagation in Double-Porosity Materials Saturated with Dual-Fluid
Sun, Weitao (author) / Ba, Jing (author) / Cao, Hong (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 101-110
2013-06-18
Conference paper
Electronic Resource
English
Wave propagation in saturated high porosity materials
| British Library Conference Proceedings | 2005
Wave propagation in double-porosity dual-permeability materials: Velocity and attenuation
| British Library Online Contents | 2017
Wave propagation in double-porosity dual-permeability materials: Velocity and attenuation
| British Library Online Contents | 2017
Wave propagation in double-porosity dual-permeability materials: Velocity and attenuation
| British Library Online Contents | 2017
Porosity of fluid-saturated porous media from measured seismic wave velocities
| British Library Online Contents | 2002