Sendula, A. orcid.org/0009-0002-8584-3682, Wang, K. orcid.org/0000-0003-3604-5166, Subramanyam, S.B. orcid.org/0000-0002-8654-2390 et al. (6 more authors) (2024) Multiphase thermo-hydro-mechanical coupled soil drying model with phase-exchange based on mixture coupling theory. International Journal of Engineering Science, 203. 104119. ISSN 0020-7225
Abstract
The drying phenomenon in soils involves complex interactions between thermal, hydrological, and mechanical effects within a multiphase system. While several researches (both mechanics and mixture theory approach) has been applied to study various thermo-hydro-mechanical (THM) coupled processes in porous media, incorporating both multiphase flow and phase change in soil drying remains limited. This work addresses this research gap by deriving new governing equations for a two-phase flow model suitable for soil drying by extending the mixture coupling approach. The derived model is implemented in COMSOL Multiphysics and validated against experimental data, demonstrating good agreement between the model predictions and the ob- served results. A sensitivity analysis is performed to investigate the impact of critical parameters on the drying process. The findings reveal that volumetric strain is most sensitive to Young’s modulus, while the saturation of liquid water is most affected by intrinsic permeability. Additionally, preliminary results for a kaolinite clay sample during the drying process are presented, extending the applicability of the derived model to specific soil types. This research provides a comprehensive framework for fully THM coupled modelling of soil drying, which can serve as a basis for future investigations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Authors. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Mixture coupling theory, THM model, Multiphase, Soil drying |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Aug 2024 10:17 |
Last Modified: | 07 Aug 2024 10:17 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.ijengsci.2024.104119 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:215803 |