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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Title: Modelling stress-dependent single and multi-phase flows in fractured porous media based on an immersed-body method with mesh adaptivity
Authors: Obeysekara, A
Xiang, J
Latham, JP
Salinas, P
Pavlidis, D
Pain, C
Lei, Q
Item Type: Journal Article
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.
Issue Date: 1-Nov-2018
Date of Acceptance: 14-Jul-2018
URI: http://hdl.handle.net/10044/1/62762
DOI: https://dx.doi.org/10.1016/j.compgeo.2018.07.009
ISSN: 0266-352X
Publisher: Elsevier
Start Page: 229
End Page: 241
Journal / Book Title: Computers and Geotechnics
Volume: 103
Copyright Statement: © 2018 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/)
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Natural Environment Research Council (NERC)
European Commission
Engineering & Physical Science Research Council (E
Funder's Grant Number: GR/S42699/01
EP/H030123/1
NE/L000660/1
654662
EP/R005761/1
Keywords: 0905 Civil Engineering
0914 Resources Engineering And Extractive Metallurgy
0915 Interdisciplinary Engineering
Geological & Geomatics Engineering
Publication Status: Published
Online Publication Date: 2018-08-03
Appears in Collections:Faculty of Engineering
Earth Science and Engineering



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