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Article: Hydromechanical modeling of unsaturated flow in double porosity media
Title | Hydromechanical modeling of unsaturated flow in double porosity media |
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Authors | |
Keywords | Unsaturated flow Effective stress Coupled problem Double porosity Mixture theory |
Issue Date | 2016 |
Citation | International Journal of Geomechanics, 2016, v. 16, n. 6 How to Cite? |
Abstract | © 2016 American Society of Civil Engineers. Abstract: Geomaterials with aggregated structure or containing fissures often exhibit a bimodal pore size distribution that can be viewed as two coexisting pore regions of different scales. The double-porosity concept enables continuum modeling of such materials by considering two interacting pore scales satisfying relevant conservation laws. This paper develops a thermodynamically consistent framework for hydromechanical modeling of unsaturated flow in double-porosity media. With an explicit treatment of the two pore scales, conservation laws are formulated incorporating an effective stress tensor that is energy-conjugate to the rate of deformation tensor of the solid matrix. A constitutive framework is developed on the basis of energy-conjugate pairs identified in the first law of thermodynamics, which is then incorporated into a three-field mixed finite-element formulation for double-porosity media. Numerical simulations of laboratory- and field-scale problems are presented to demonstrate the impact of double porosity on the resulting hydromechanical responses. |
Persistent Identifier | http://hdl.handle.net/10722/251187 |
ISSN | 2023 Impact Factor: 3.3 2023 SCImago Journal Rankings: 1.112 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Choo, Jinhyun | - |
dc.contributor.author | White, Joshua A. | - |
dc.contributor.author | Borja, Ronaldo I. | - |
dc.date.accessioned | 2018-02-01T01:54:51Z | - |
dc.date.available | 2018-02-01T01:54:51Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | International Journal of Geomechanics, 2016, v. 16, n. 6 | - |
dc.identifier.issn | 1532-3641 | - |
dc.identifier.uri | http://hdl.handle.net/10722/251187 | - |
dc.description.abstract | © 2016 American Society of Civil Engineers. Abstract: Geomaterials with aggregated structure or containing fissures often exhibit a bimodal pore size distribution that can be viewed as two coexisting pore regions of different scales. The double-porosity concept enables continuum modeling of such materials by considering two interacting pore scales satisfying relevant conservation laws. This paper develops a thermodynamically consistent framework for hydromechanical modeling of unsaturated flow in double-porosity media. With an explicit treatment of the two pore scales, conservation laws are formulated incorporating an effective stress tensor that is energy-conjugate to the rate of deformation tensor of the solid matrix. A constitutive framework is developed on the basis of energy-conjugate pairs identified in the first law of thermodynamics, which is then incorporated into a three-field mixed finite-element formulation for double-porosity media. Numerical simulations of laboratory- and field-scale problems are presented to demonstrate the impact of double porosity on the resulting hydromechanical responses. | - |
dc.language | eng | - |
dc.relation.ispartof | International Journal of Geomechanics | - |
dc.subject | Unsaturated flow | - |
dc.subject | Effective stress | - |
dc.subject | Coupled problem | - |
dc.subject | Double porosity | - |
dc.subject | Mixture theory | - |
dc.title | Hydromechanical modeling of unsaturated flow in double porosity media | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1061/(ASCE)GM.1943-5622.0000558 | - |
dc.identifier.scopus | eid_2-s2.0-84996993089 | - |
dc.identifier.volume | 16 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | null | - |
dc.identifier.epage | null | - |
dc.identifier.isi | WOS:000388599600002 | - |
dc.identifier.issnl | 1532-3641 | - |