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Validation of pore network modeling for determination of two-phase transport in fibrous porous media

Pore network modeling (PNM) has been widely investigated in the study of multiphase transport in porous media due to its high computational efficiency. The advantage of PNM is achieved in part at the cost of using simplified geometrical elements. Therefore, the validation of pore network modeling ne...

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Detalles Bibliográficos
Autores principales: Huang, Xiang, Zhou, Wei, Deng, Daxiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7705660/
https://www.ncbi.nlm.nih.gov/pubmed/33257750
http://dx.doi.org/10.1038/s41598-020-74581-0
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author Huang, Xiang
Zhou, Wei
Deng, Daxiang
author_facet Huang, Xiang
Zhou, Wei
Deng, Daxiang
author_sort Huang, Xiang
collection PubMed
description Pore network modeling (PNM) has been widely investigated in the study of multiphase transport in porous media due to its high computational efficiency. The advantage of PNM is achieved in part at the cost of using simplified geometrical elements. Therefore, the validation of pore network modeling needs further verification. A Shan-Chen (SC) multiphase lattice Boltzmann model (LBM) was used to simulate the multiphase flow and provided as the benchmark. PNM using different definitions of throat radius was performed and compared. The results showed that the capillary pressure and saturation curves agreed well when throat radius was calculated using the area-equivalent radius. The discrepancy of predicted phase occupations from different methods was compared in slice images and the reason can be attributed to the capillary pressure gradients demonstrated in LBM. Finally, the relative permeability was also predicted using PNM and provided acceptable predictions when compared with the results using single-phase LBM.
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spelling pubmed-77056602020-12-02 Validation of pore network modeling for determination of two-phase transport in fibrous porous media Huang, Xiang Zhou, Wei Deng, Daxiang Sci Rep Article Pore network modeling (PNM) has been widely investigated in the study of multiphase transport in porous media due to its high computational efficiency. The advantage of PNM is achieved in part at the cost of using simplified geometrical elements. Therefore, the validation of pore network modeling needs further verification. A Shan-Chen (SC) multiphase lattice Boltzmann model (LBM) was used to simulate the multiphase flow and provided as the benchmark. PNM using different definitions of throat radius was performed and compared. The results showed that the capillary pressure and saturation curves agreed well when throat radius was calculated using the area-equivalent radius. The discrepancy of predicted phase occupations from different methods was compared in slice images and the reason can be attributed to the capillary pressure gradients demonstrated in LBM. Finally, the relative permeability was also predicted using PNM and provided acceptable predictions when compared with the results using single-phase LBM. Nature Publishing Group UK 2020-11-30 /pmc/articles/PMC7705660/ /pubmed/33257750 http://dx.doi.org/10.1038/s41598-020-74581-0 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Huang, Xiang
Zhou, Wei
Deng, Daxiang
Validation of pore network modeling for determination of two-phase transport in fibrous porous media
title Validation of pore network modeling for determination of two-phase transport in fibrous porous media
title_full Validation of pore network modeling for determination of two-phase transport in fibrous porous media
title_fullStr Validation of pore network modeling for determination of two-phase transport in fibrous porous media
title_full_unstemmed Validation of pore network modeling for determination of two-phase transport in fibrous porous media
title_short Validation of pore network modeling for determination of two-phase transport in fibrous porous media
title_sort validation of pore network modeling for determination of two-phase transport in fibrous porous media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7705660/
https://www.ncbi.nlm.nih.gov/pubmed/33257750
http://dx.doi.org/10.1038/s41598-020-74581-0
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