Wave Propagation in Poroelastic Media Saturated by Two Fluids

Date

1997-6-1

Author

Tuncay, Kağan

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A theory of wave propagation in isotropic poroelastic media saturated by two immiscible Newtonian fluids is presented. The macroscopic constitutive relations, and mass and momentum balance equations are obtained by volume averaging the microscale balance and constitutive equations and assuming small deformations. Momentum transfer terms are expressed in terms of intrinsic and relative permeabilities assuming the validity of Darcy’s law. The coefficients of macroscopic constitutive relations are expressed in terms of measurable quantities in a novel way. The theory demonstrates the existence of three compressional and one rotational wave. The third compressional wave is associated with the pressure difference between the fluid phase and dependent on the slope of the capillary pressure-saturation relation.

Subject Keywords

Porous-media, Compressional wave, Dynamic behavior, Mixture theory, 2-phase fluid, Attenuation, Equations

URI

https://hdl.handle.net/11511/28168

Journal

Journal of Applied Mechanics

DOI

https://doi.org/10.1115/1.2787309

Collections

Department of Civil Engineering, Article

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Citation Formats

K. Tuncay, “Wave Propagation in Poroelastic Media Saturated by Two Fluids,” Journal of Applied Mechanics, pp. 313–320, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/28168.