Modelling stress-dependent single and multi-phase flows in fractured porous media based on an immersed-body method with mesh adaptivity
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Date
2018
Publication Type
Journal Article
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Abstract
This paper presents a novel approach for hydromechanical modelling of fractured rocks by linking a finite-discrete element solid model with a control volume-finite element fluid model based on an immersed-body approach. The adaptive meshing capability permits flow within/near fractures to be accurately captured by locally-refined mesh. The model is validated against analytical solutions for single-phase flow through a smooth/rough fracture and reported numerical solutions for multi-phase flow through intersecting fractures. Examples of modelling single- and multi-phase flows through fracture networks under in situ stresses are further presented, illustrating the important geomechanical effects on the hydrological behaviour of fractured porous media.
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Publication status
published
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Book title
Journal / series
Volume
103
Pages / Article No.
229 - 241
Publisher
Elsevier
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Edition / version
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Geographic location
Date collected
Date created
Subject
Fractures; FEMDEM; Immersed-body method; Aperture; Stress; Fluid flow
Organisational unit
02704 - Geologisches Institut / Geological Institute