TY - JOUR
T1 - A Macro-microscopic Coupled Constitutive Model for Fluid-Saturated Porous Media with Compressible Constituents
AU - Liang, Jia Yu
AU - Li, Yue Ming
AU - Bauer, Erich
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature B.V.
PY - 2022/1
Y1 - 2022/1
N2 - The paper provides a macro-microscopic coupled constitutive model for fluid-saturated porous media with respect to the compressibility of the solid skeleton, the real solid material and the fluid phase. The derivation of the model is carried out based on the porous media theory and is consistent with the second law of thermodynamics. In the present paper, two different sets of independent variables are introduced to implement the coupled behavior between the compressibility of the solid skeleton and the real solid material. Altogether the proposed model exploits five independent variables, i.e., the deviatoric part of the right Cauchy–Green deformation tensor, the partial density of solid phase, the density of the real solid material, the density of the real fluid material and the relative velocity of the fluid phase. Subsequently, the linearized version of the proposed constitutive model is also presented and compared with some models by other authors. It is found that Biot’s model can also be derived based on the linearized version of the proposed model, which indicates that the present work bridges the gap between the porous media theory and Biot’s model. Compared with Biot’s model, the present model can provide the evolution of the porosity by considering the volumetric strain of the solid skeleton and the volumetric strain of the real solid material.
AB - The paper provides a macro-microscopic coupled constitutive model for fluid-saturated porous media with respect to the compressibility of the solid skeleton, the real solid material and the fluid phase. The derivation of the model is carried out based on the porous media theory and is consistent with the second law of thermodynamics. In the present paper, two different sets of independent variables are introduced to implement the coupled behavior between the compressibility of the solid skeleton and the real solid material. Altogether the proposed model exploits five independent variables, i.e., the deviatoric part of the right Cauchy–Green deformation tensor, the partial density of solid phase, the density of the real solid material, the density of the real fluid material and the relative velocity of the fluid phase. Subsequently, the linearized version of the proposed constitutive model is also presented and compared with some models by other authors. It is found that Biot’s model can also be derived based on the linearized version of the proposed model, which indicates that the present work bridges the gap between the porous media theory and Biot’s model. Compared with Biot’s model, the present model can provide the evolution of the porosity by considering the volumetric strain of the solid skeleton and the volumetric strain of the real solid material.
KW - Biot’s model
KW - Constitutive relations
KW - Porous media theory
KW - Saturated porous media
UR - http://www.scopus.com/inward/record.url?scp=85124525035&partnerID=8YFLogxK
U2 - 10.1007/s11242-021-01725-9
DO - 10.1007/s11242-021-01725-9
M3 - Article
AN - SCOPUS:85124525035
SN - 0169-3913
VL - 141
SP - 379
EP - 416
JO - Transport in Porous Media
JF - Transport in Porous Media
IS - 2
ER -