By Bai, Miao; Elsworth, Derek
''Coupled strategies in Subsurface Deformation, movement, and Transport'' provides a rational and unified therapy of coupled procedures, with emphasis at the coupling and feedbacks current the place strong deformation, fluid stream, and solute delivery mix, and within the illustration of heterogeneous media via multi-porosity ways. Analytical and numerical recommendations are provided for subsurface structures subjected to various mechanical, thermal, and chemical disturbances. this is often a useful reference booklet or instructing textual content, from which civil, mining, petroleum, environmental, chemical, technique, and geological engineers, and geological scientists will achieve an figuring out of the theoretical bases and connections among deformation, move, and delivery within the subsurface. Likewise, readers will learn how to distinguish among coupled and uncoupled techniques and their respective restraints and significances, understand the consequences of heterogeneities on deformation, move, and delivery within the subsurface, evaluation or research renowned and detailed analytical and numerical tools within the similar fields, and hyperlink basic theories with useful purposes in multidisciplinary parts. major, new, and not ahead of released techniques, are incorporated
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''Coupled approaches in Subsurface Deformation, move, and Transport'' offers a rational and unified remedy of coupled approaches, with emphasis at the coupling and feedbacks current the place stable deformation, fluid move, and solute delivery mix, and within the illustration of heterogeneous media via multi-porosity techniques.
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Additional info for Coupled processes in subsurface deformation, flow, and transport
Flow is laminar and linear where Darcy's flow velocity is applicable. , neglecting higher order nonlinear terms), and the validity of superposition. Pick's law is valid in diffusive transport; Fourier's law is valid in thermal transfer. • Fractures and porous matrix blocks are treated as two distinct media. Any activities such as interactive flow and transport between these two media are viewed as internal. • When discussion is confined to the classic dual-porosity approach, fluid flow in fractures and in the porous matrix blocks are considered as "separate" events, linked only by the leakage terms characterizing the interporosity flow as a result of the pressure difference between the two media.
A poroelastic approach is a preferred method to accurately characterize coupled fluid flow processes within deformable porous media. Consolidation phenomena are well understood where the porous skeleton is subjected to external loads and consolidates progressively as pore pressures dissipate. Compared with uncoupled fluid flow and solid deformation, the poroelastic effects show strong interaction between flow and deformation. Slower flow induces smaller displacement, or larger deformation leads to higher pressure perturbation.
These multiple coupled processes are referred to as dual-porosity poroelastic behavior of fractured porous media. Coupled processes may be more general than this flow-deformation system. A fully conservative system will maintain momentum, mass, and energy balances throughout its temporal and spatial evolution. In this aspect, comprehensive coupling is achievable for a poroelastic system. Theoretically, other processes may be coupled with this poroelastic response, such as (a) chemical reactions, (b) viscous and plastic behavior of rock constituents, (c) heterogeneities such as fractures, (d) nonlinearities, and (e) multi-phase fluids.
Coupled processes in subsurface deformation, flow, and transport by Bai, Miao; Elsworth, Derek